[1] 'El Nino' that affects our Monsoons, has its origins in –
A.
The Indian Ocean
B.
The Himalayan Plateau
C.
The Pacific Ocean
D.
The Arabian Peninsula
Ans:
The Pacific Ocean
Explanation :
El Nino is a climate cycle in the Pacific Ocean that causes global changes of both temperatures and rainfall. It is characterized by unusually warm ocean temperatures in the Equatorial Pacific, as opposed to La Nina, which is characterized by unusually cold ocean temperatures in the Equatorial Pacific.
[2] In a desert region, soil erosion can be checked by –
A.
Contour ploughing
B.
Using farm manure
C.
Tree plantation/Afforestaion
D.
Crop rotation
Ans:
Tree plantation/Afforestaion
Explanation :
Afforestation holds the key for preventing soil erosion in desert regions and further desertification. Trees or even small plants bind soil to their roots, thereby checking their loosening. Some other measures include: introduction of improved dry farming practices and animal husbandry and plantations for fuel and fodder.
[3] 'Terra rossa' is a Latin word which means –
A.
hot area
B.
red terrain
C.
lateritic region
D.
region near the poles
Ans:
red terrain
Explanation :
Terra Rossa' in Latin or Italian language is another name for "Red Soil" or "Red Terrain". It is a type of red clay soil produced by the weathering of limestone. Terra Rossa is typically found in regions with a Mediterranean climate.
[4] Which of the following is a renewable resource?
A.
Coal
B.
Mineral oil
C.
Natural gas
D.
Forests
Ans:
Forests
Explanation :
Forest is a renewable resource.
[5] Taiga means :
A.
Decidious forests
B.
Coniferous forests
C.
Grass lands
D.
Deserts
Ans:
Coniferous forests
Explanation :
Taiga is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. It is the world's largest terrestrial biome.
[6] Contours are imaginary lines showing –
A.
places of equal atmospheric pressure
B.
same temperature areas
C.
places of equal altitudes
D.
equal sunshine areas
Ans:
places of equal altitudes
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. Contour lines are curved or straight lines on a map describing the intersection of a real or hypothetical surface with one or more horizontal planes. The configuration of these contours allows map readers to infer relative gradient of a parameter and estimate that parameter at specific places.
[7] The imaginary lines joining places of same height at equal intervals are –
A.
Hachures
B.
Contours
C.
Spot-heights
D.
Isomers
Ans:
Contours
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level.
[8] Imaginary lines joining places with same temperature are called –
A.
Isobars
B.
Isohyets
C.
Isohalines
D.
Isotherms
Ans:
Isotherms
Explanation :
An isotherm is a line on a map or chart of the earth's surface connecting points having the same temperature at a given time or the same mean temperature for a given period. Isotherm maps show where temperatures are relatively high and low, and also where temperature changes are gradual or dramatic over a distance.
[9] What is meant by the term "mid-night sun"?
A.
Twilight
B.
Rising Sun
C.
Very bright moon
D.
Sun shining in the polar circle for long time
Ans:
Sun shining in the polar circle for long time
Explanation :
The midnight sun is a natural phenomenon occurring in summer months at places north of the Arctic Circle and south of the Antarctic Circle where the sun remains visible at the local midnight. Around the solstice (June 21 in the north and December 21 in the south) and given fair weather the sun is visible for the full 24 hours. The number of days per year with potential midnight sun increases the farther towards either pole one goes.
[10] What is the mean temperature of Earth?
A.
6 degree Celsius
B.
16 degree Celsius
C.
26 degree Celsius
D.
36 degree Celsius
Ans:
16 degree Celsius
Explanation :
The average temperature on Earth is about 61° F (16° C). But temperatures vary greatly around the world depending on the time of year, ocean and wind currents and weather conditions. Summers tend to be warmer and winters colder. Also, temperatures tend to be higher near the equator and lower near the poles.
[11] The outermost layer of sun is called –
A.
Lithosphere
B.
Chromosphere
C.
Photosphere
D.
Corona
Ans:
Corona
Explanation :
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse. The corona does not have an upper limit.
[12] On which date is India likely to experience the shortest day?
A.
December 22
B.
March 21
C.
June 22
D.
September 23
Ans:
December 22
Explanation :
21-23 December, also known as winter solstice, is the shortest day of the year in the northern hemisphere. India, being in the northern hemisphere, experiences its shortest day and longest night on this very day. The winter solstice occurs at the moment when the North Pole is tilted furthest away from the sun.
[13] The planet that takes 88 days to make one revolution of the sun is -
A.
Mercury
B.
Saturn
C.
Jupiter
D.
Mars
Ans:
Mercury
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
El Nino is a climate cycle in the Pacific Ocean that causes global changes of both temperatures and rainfall. It is characterized by unusually warm ocean temperatures in the Equatorial Pacific, as opposed to La Nina, which is characterized by unusually cold ocean temperatures in the Equatorial Pacific.
[2] In a desert region, soil erosion can be checked by –
A.
Contour ploughing
B.
Using farm manure
C.
Tree plantation/Afforestaion
D.
Crop rotation
Ans:
Tree plantation/Afforestaion
Explanation :
Afforestation holds the key for preventing soil erosion in desert regions and further desertification. Trees or even small plants bind soil to their roots, thereby checking their loosening. Some other measures include: introduction of improved dry farming practices and animal husbandry and plantations for fuel and fodder.
[3] 'Terra rossa' is a Latin word which means –
A.
hot area
B.
red terrain
C.
lateritic region
D.
region near the poles
Ans:
red terrain
Explanation :
Terra Rossa' in Latin or Italian language is another name for "Red Soil" or "Red Terrain". It is a type of red clay soil produced by the weathering of limestone. Terra Rossa is typically found in regions with a Mediterranean climate.
[4] Which of the following is a renewable resource?
A.
Coal
B.
Mineral oil
C.
Natural gas
D.
Forests
Ans:
Forests
Explanation :
Forest is a renewable resource.
[5] Taiga means :
A.
Decidious forests
B.
Coniferous forests
C.
Grass lands
D.
Deserts
Ans:
Coniferous forests
Explanation :
Taiga is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. It is the world's largest terrestrial biome.
[6] Contours are imaginary lines showing –
A.
places of equal atmospheric pressure
B.
same temperature areas
C.
places of equal altitudes
D.
equal sunshine areas
Ans:
places of equal altitudes
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. Contour lines are curved or straight lines on a map describing the intersection of a real or hypothetical surface with one or more horizontal planes. The configuration of these contours allows map readers to infer relative gradient of a parameter and estimate that parameter at specific places.
[7] The imaginary lines joining places of same height at equal intervals are –
A.
Hachures
B.
Contours
C.
Spot-heights
D.
Isomers
Ans:
Contours
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level.
[8] Imaginary lines joining places with same temperature are called –
A.
Isobars
B.
Isohyets
C.
Isohalines
D.
Isotherms
Ans:
Isotherms
Explanation :
An isotherm is a line on a map or chart of the earth's surface connecting points having the same temperature at a given time or the same mean temperature for a given period. Isotherm maps show where temperatures are relatively high and low, and also where temperature changes are gradual or dramatic over a distance.
[9] What is meant by the term "mid-night sun"?
A.
Twilight
B.
Rising Sun
C.
Very bright moon
D.
Sun shining in the polar circle for long time
Ans:
Sun shining in the polar circle for long time
Explanation :
The midnight sun is a natural phenomenon occurring in summer months at places north of the Arctic Circle and south of the Antarctic Circle where the sun remains visible at the local midnight. Around the solstice (June 21 in the north and December 21 in the south) and given fair weather the sun is visible for the full 24 hours. The number of days per year with potential midnight sun increases the farther towards either pole one goes.
[10] What is the mean temperature of Earth?
A.
6 degree Celsius
B.
16 degree Celsius
C.
26 degree Celsius
D.
36 degree Celsius
Ans:
16 degree Celsius
Explanation :
The average temperature on Earth is about 61° F (16° C). But temperatures vary greatly around the world depending on the time of year, ocean and wind currents and weather conditions. Summers tend to be warmer and winters colder. Also, temperatures tend to be higher near the equator and lower near the poles.
[11] The outermost layer of sun is called –
A.
Lithosphere
B.
Chromosphere
C.
Photosphere
D.
Corona
Ans:
Corona
Explanation :
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse. The corona does not have an upper limit.
[12] On which date is India likely to experience the shortest day?
A.
December 22
B.
March 21
C.
June 22
D.
September 23
Ans:
December 22
Explanation :
21-23 December, also known as winter solstice, is the shortest day of the year in the northern hemisphere. India, being in the northern hemisphere, experiences its shortest day and longest night on this very day. The winter solstice occurs at the moment when the North Pole is tilted furthest away from the sun.
[13] The planet that takes 88 days to make one revolution of the sun is -
A.
Mercury
B.
Saturn
C.
Jupiter
D.
Mars
Ans:
Mercury
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
Terra Rossa' in Latin or Italian language is another name for "Red Soil" or "Red Terrain". It is a type of red clay soil produced by the weathering of limestone. Terra Rossa is typically found in regions with a Mediterranean climate.
[4] Which of the following is a renewable resource?
A.
Coal
B.
Mineral oil
C.
Natural gas
D.
Forests
Ans:
Forests
Explanation :
Forest is a renewable resource.
[5] Taiga means :
A.
Decidious forests
B.
Coniferous forests
C.
Grass lands
D.
Deserts
Ans:
Coniferous forests
Explanation :
Taiga is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. It is the world's largest terrestrial biome.
[6] Contours are imaginary lines showing –
A.
places of equal atmospheric pressure
B.
same temperature areas
C.
places of equal altitudes
D.
equal sunshine areas
Ans:
places of equal altitudes
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. Contour lines are curved or straight lines on a map describing the intersection of a real or hypothetical surface with one or more horizontal planes. The configuration of these contours allows map readers to infer relative gradient of a parameter and estimate that parameter at specific places.
[7] The imaginary lines joining places of same height at equal intervals are –
A.
Hachures
B.
Contours
C.
Spot-heights
D.
Isomers
Ans:
Contours
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level.
[8] Imaginary lines joining places with same temperature are called –
A.
Isobars
B.
Isohyets
C.
Isohalines
D.
Isotherms
Ans:
Isotherms
Explanation :
An isotherm is a line on a map or chart of the earth's surface connecting points having the same temperature at a given time or the same mean temperature for a given period. Isotherm maps show where temperatures are relatively high and low, and also where temperature changes are gradual or dramatic over a distance.
[9] What is meant by the term "mid-night sun"?
A.
Twilight
B.
Rising Sun
C.
Very bright moon
D.
Sun shining in the polar circle for long time
Ans:
Sun shining in the polar circle for long time
Explanation :
The midnight sun is a natural phenomenon occurring in summer months at places north of the Arctic Circle and south of the Antarctic Circle where the sun remains visible at the local midnight. Around the solstice (June 21 in the north and December 21 in the south) and given fair weather the sun is visible for the full 24 hours. The number of days per year with potential midnight sun increases the farther towards either pole one goes.
[10] What is the mean temperature of Earth?
A.
6 degree Celsius
B.
16 degree Celsius
C.
26 degree Celsius
D.
36 degree Celsius
Ans:
16 degree Celsius
Explanation :
The average temperature on Earth is about 61° F (16° C). But temperatures vary greatly around the world depending on the time of year, ocean and wind currents and weather conditions. Summers tend to be warmer and winters colder. Also, temperatures tend to be higher near the equator and lower near the poles.
[11] The outermost layer of sun is called –
A.
Lithosphere
B.
Chromosphere
C.
Photosphere
D.
Corona
Ans:
Corona
Explanation :
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse. The corona does not have an upper limit.
[12] On which date is India likely to experience the shortest day?
A.
December 22
B.
March 21
C.
June 22
D.
September 23
Ans:
December 22
Explanation :
21-23 December, also known as winter solstice, is the shortest day of the year in the northern hemisphere. India, being in the northern hemisphere, experiences its shortest day and longest night on this very day. The winter solstice occurs at the moment when the North Pole is tilted furthest away from the sun.
[13] The planet that takes 88 days to make one revolution of the sun is -
A.
Mercury
B.
Saturn
C.
Jupiter
D.
Mars
Ans:
Mercury
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
Taiga is a biome characterized by coniferous forests consisting mostly of pines, spruces and larches. It is the world's largest terrestrial biome.
[6] Contours are imaginary lines showing –
A.
places of equal atmospheric pressure
B.
same temperature areas
C.
places of equal altitudes
D.
equal sunshine areas
Ans:
places of equal altitudes
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. Contour lines are curved or straight lines on a map describing the intersection of a real or hypothetical surface with one or more horizontal planes. The configuration of these contours allows map readers to infer relative gradient of a parameter and estimate that parameter at specific places.
[7] The imaginary lines joining places of same height at equal intervals are –
A.
Hachures
B.
Contours
C.
Spot-heights
D.
Isomers
Ans:
Contours
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level.
[8] Imaginary lines joining places with same temperature are called –
A.
Isobars
B.
Isohyets
C.
Isohalines
D.
Isotherms
Ans:
Isotherms
Explanation :
An isotherm is a line on a map or chart of the earth's surface connecting points having the same temperature at a given time or the same mean temperature for a given period. Isotherm maps show where temperatures are relatively high and low, and also where temperature changes are gradual or dramatic over a distance.
[9] What is meant by the term "mid-night sun"?
A.
Twilight
B.
Rising Sun
C.
Very bright moon
D.
Sun shining in the polar circle for long time
Ans:
Sun shining in the polar circle for long time
Explanation :
The midnight sun is a natural phenomenon occurring in summer months at places north of the Arctic Circle and south of the Antarctic Circle where the sun remains visible at the local midnight. Around the solstice (June 21 in the north and December 21 in the south) and given fair weather the sun is visible for the full 24 hours. The number of days per year with potential midnight sun increases the farther towards either pole one goes.
[10] What is the mean temperature of Earth?
A.
6 degree Celsius
B.
16 degree Celsius
C.
26 degree Celsius
D.
36 degree Celsius
Ans:
16 degree Celsius
Explanation :
The average temperature on Earth is about 61° F (16° C). But temperatures vary greatly around the world depending on the time of year, ocean and wind currents and weather conditions. Summers tend to be warmer and winters colder. Also, temperatures tend to be higher near the equator and lower near the poles.
[11] The outermost layer of sun is called –
A.
Lithosphere
B.
Chromosphere
C.
Photosphere
D.
Corona
Ans:
Corona
Explanation :
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse. The corona does not have an upper limit.
[12] On which date is India likely to experience the shortest day?
A.
December 22
B.
March 21
C.
June 22
D.
September 23
Ans:
December 22
Explanation :
21-23 December, also known as winter solstice, is the shortest day of the year in the northern hemisphere. India, being in the northern hemisphere, experiences its shortest day and longest night on this very day. The winter solstice occurs at the moment when the North Pole is tilted furthest away from the sun.
[13] The planet that takes 88 days to make one revolution of the sun is -
A.
Mercury
B.
Saturn
C.
Jupiter
D.
Mars
Ans:
Mercury
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level.
[8] Imaginary lines joining places with same temperature are called –
A.
Isobars
B.
Isohyets
C.
Isohalines
D.
Isotherms
Ans:
Isotherms
Explanation :
An isotherm is a line on a map or chart of the earth's surface connecting points having the same temperature at a given time or the same mean temperature for a given period. Isotherm maps show where temperatures are relatively high and low, and also where temperature changes are gradual or dramatic over a distance.
[9] What is meant by the term "mid-night sun"?
A.
Twilight
B.
Rising Sun
C.
Very bright moon
D.
Sun shining in the polar circle for long time
Ans:
Sun shining in the polar circle for long time
Explanation :
The midnight sun is a natural phenomenon occurring in summer months at places north of the Arctic Circle and south of the Antarctic Circle where the sun remains visible at the local midnight. Around the solstice (June 21 in the north and December 21 in the south) and given fair weather the sun is visible for the full 24 hours. The number of days per year with potential midnight sun increases the farther towards either pole one goes.
[10] What is the mean temperature of Earth?
A.
6 degree Celsius
B.
16 degree Celsius
C.
26 degree Celsius
D.
36 degree Celsius
Ans:
16 degree Celsius
Explanation :
The average temperature on Earth is about 61° F (16° C). But temperatures vary greatly around the world depending on the time of year, ocean and wind currents and weather conditions. Summers tend to be warmer and winters colder. Also, temperatures tend to be higher near the equator and lower near the poles.
[11] The outermost layer of sun is called –
A.
Lithosphere
B.
Chromosphere
C.
Photosphere
D.
Corona
Ans:
Corona
Explanation :
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse. The corona does not have an upper limit.
[12] On which date is India likely to experience the shortest day?
A.
December 22
B.
March 21
C.
June 22
D.
September 23
Ans:
December 22
Explanation :
21-23 December, also known as winter solstice, is the shortest day of the year in the northern hemisphere. India, being in the northern hemisphere, experiences its shortest day and longest night on this very day. The winter solstice occurs at the moment when the North Pole is tilted furthest away from the sun.
[13] The planet that takes 88 days to make one revolution of the sun is -
A.
Mercury
B.
Saturn
C.
Jupiter
D.
Mars
Ans:
Mercury
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
The midnight sun is a natural phenomenon occurring in summer months at places north of the Arctic Circle and south of the Antarctic Circle where the sun remains visible at the local midnight. Around the solstice (June 21 in the north and December 21 in the south) and given fair weather the sun is visible for the full 24 hours. The number of days per year with potential midnight sun increases the farther towards either pole one goes.
[10] What is the mean temperature of Earth?
A.
6 degree Celsius
B.
16 degree Celsius
C.
26 degree Celsius
D.
36 degree Celsius
Ans:
16 degree Celsius
Explanation :
The average temperature on Earth is about 61° F (16° C). But temperatures vary greatly around the world depending on the time of year, ocean and wind currents and weather conditions. Summers tend to be warmer and winters colder. Also, temperatures tend to be higher near the equator and lower near the poles.
[11] The outermost layer of sun is called –
A.
Lithosphere
B.
Chromosphere
C.
Photosphere
D.
Corona
Ans:
Corona
Explanation :
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse. The corona does not have an upper limit.
[12] On which date is India likely to experience the shortest day?
A.
December 22
B.
March 21
C.
June 22
D.
September 23
Ans:
December 22
Explanation :
21-23 December, also known as winter solstice, is the shortest day of the year in the northern hemisphere. India, being in the northern hemisphere, experiences its shortest day and longest night on this very day. The winter solstice occurs at the moment when the North Pole is tilted furthest away from the sun.
[13] The planet that takes 88 days to make one revolution of the sun is -
A.
Mercury
B.
Saturn
C.
Jupiter
D.
Mars
Ans:
Mercury
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere). The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse. The corona does not have an upper limit.
[12] On which date is India likely to experience the shortest day?
A.
December 22
B.
March 21
C.
June 22
D.
September 23
Ans:
December 22
Explanation :
21-23 December, also known as winter solstice, is the shortest day of the year in the northern hemisphere. India, being in the northern hemisphere, experiences its shortest day and longest night on this very day. The winter solstice occurs at the moment when the North Pole is tilted furthest away from the sun.
[13] The planet that takes 88 days to make one revolution of the sun is -
A.
Mercury
B.
Saturn
C.
Jupiter
D.
Mars
Ans:
Mercury
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
In the solar system, the orbit of Mercury is the most eccentric (that is, the least perfectly circular) of the eight planets. It orbits the Sun once in about 88 Earth days, completing three rotations about its axis for every two orbits.
[14] 'Super nova' is –
A.
a comet
B.
an asteroid
C.
an exploding Star
D.
a black hole
Ans:
an exploding Star
Explanation :
A supernova is a stellar explosion that is more energetic than a nova. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span. The explosion expels much or all of a star's material at a velocity of up to 30,000 km/s (10% of the speed of light).
[15] Which is the coldest among the following?
A.
Mars
B.
Earth
C.
Pluto
D.
Mercury
Ans:
Pluto
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
Until it lost its planetary status in 2006, Pluto was the coldest with an estimated surface temperature between -235 and -210 degrees Celsius. But Pluto has now been relegated the status of a Dwarf Planet. Pluto has always had the 'honour' of being the coldest planet with an average temperature between - 360 to -400 degrees Fahrenheit. This is because it is so far away from the sun: it is over 40 times further from the sun than planet Earth. Pluto also has no internal heat source and it even orbits in a ring of ice debris.
[16] The minimum short-term natural hazard is –
A.
blizzard
B.
earthquake
C.
volcanic eruption
D.
bolt of lightning
Ans:
bolt of lightning
Explanation :
Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth - the upper layers push down against the lower layers
[17] Molten rock below the surface of the earth is called –
A.
Basalt
B.
Laccolith
C.
Lava
D.
Magma
Ans:
Magma
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
Magma is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth. When magma erupts from a volcano or other vent, the molten rock is referred to as lava. When lava cools on the Earth's surface and forms a solid structure, it is called igneous rock.
[18] An earthquake is also, known as –
A.
Teacher
B.
Tremor
C.
Temper
D.
None of these
Ans:
Tremor
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[19] Which one of the following rivers crosses the tropic of Capricorn twice?
A.
Vaal
B.
Limpopo
C.
Nizer
D.
Zambezi
Ans:
Limpopo
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
An earthquake is also known as a quake, tremor or temblor. At the Earth's surface, earthquakes manifest themselves by shaking and sometimes displacement of the ground. It is the result of a sudden release of energy in the Earth's crust that creates seismic waves.
[20] Breaking down of rock in situ is known as –
A.
Erosion
B.
Weathering
C.
Mass wasting
D.
Degradation
Ans:
Weathering
Explanation :
Weathering is the breaking clown of rocks, soils and minerals as well as artificial materials through contact with the Earth's atmosphere, biota and waters. Weathering occurs in situ, or "with no movement
[21] Which of the following is an example of Plutonic Igneous Rock?
A.
Basalt
B.
Granite
C.
Slate
D.
Dolomite
Ans:
Granite
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
When magma solidifies under the earth's surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.
[22] Which one of the following is the greatest circle?
A.
Tropic of Cancer
B.
Tropic of Capricorn
C.
Equator
D.
Arctic Circle
Ans:
Equator
Explanation :
An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and containing the sphere's center of mass. This imaginary line on the Earth's surface is equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. It is one of the five notable circles of latitude on Earth, with the others being the two Polar Circles and the two Tropical Circles: the Tropic of Cancer and the Tropic of Capricorn.
[23] In the context of 'time', GMT means –
A.
General Meridian Time
B.
Greenwich Mean Time
C.
Global Mean Time
D.
None of these
Ans:
Greenwich Mean Time
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
Greenwich Mean Time (GMT) is a time system originally referring to mean solar time at the Royal Observatory in Greenwich, London, which later became adopted as a global time standard. It is the term in common use in the United Kingdom and countries of the Commonwealth, including Australia, South Africa, India, Pakistan and Malaysia, as well as many other countries in the Old World.
[24] When does the moon come between the Sun and earth?
A.
Lunar eclipse
B.
Solar eclipse
C.
Sidereal day
D.
Full moon day
Ans:
Solar eclipse
Explanation :
As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. This can happen only at new moon, when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.
[25] Which one of the following is the example of sedimentary rocks?
A.
Loess
B.
Basalt
C.
Granite
D.
Gabbro
Ans:
Loess
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.
Explanation :
Loess is an Aeolian sediment formed by the accumulation of wind-blown silt, typically in the 20-50 micrometer size range, twenty percent or less clay and the balance equal parts sand and silt that are loosely cemented by calcium carbonate. It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs. The word loess, with connotations of origin by wind-deposited accumulation, is of German origin and means "loose." It was first applied to Rhine River valley loess about 1821.