[1] Which one of the following is not the example of planetary winds?
A.
Monsoon
B.
Trade wind
C.
Land and sea breezes
D.
Chinook
Ans:
Chinook
Explanation :
Chinook, originally meant a warming wind from the ocean into the interior regions of the Pacific Northwest (the Chinook people lived near the ocean, along the lower Columbia River). A strong Chinook can make snow one foot deep almost vanish in one day. The snow partly melts and partly evaporates in the dry wind. Chinook winds have been observed to raise winter temperature, often from below -20°C (-4°F) to as high as 10-20°C (50-68°F) for a few hours or days, then temperatures plummet to their base level.
[2] The climate of North America is influenced during winter by the –
A.
Polar airmasses
B.
Warm airmasses
C.
Continental airmasses
D.
Tropical airmasses
Ans:
Tropical airmasses
Explanation :
Maritime tropical (mT) air masses affecting North America most often originate over the warm water of the Gulf of Mexico, the Caribbean Sea, or the adjacent western Atlantic Ocean. As expected, mT air masses are warm to hot, and they are humid. During winter, when cP air dominates the central and eastern United States, mT air only occasionally enters this part of the country. However, during the summer, mT air masses from the Gulf, Caribbean, and adjacent Atlantic are more common and cover a much wider area of the continent.
[3] Katrina is the name given to .
A.
Satellite
B.
Star
C.
Heat wave
D.
Hurricane
Ans:
Hurricane
Explanation :
Hurricane Katrina was the deadliest and most destructive Atlantic hurricane of the 2005 Atlantic hurricane season. It was the costliest natural disaster, as well as one of the five deadliest hurricanes, in the history of the United States. At least 1,833 people died in the hurricane and subsequent floods, making it the deadliest U.S. hurricane since the 1928 Okeechobee hurricane.
[4] In which region does rainfall occur throughout the year?
A.
Mediterranean
B.
Equatorial
C.
Tropical
D.
Temperate
Ans:
Equatorial
Explanation :
The equatorial climate is found between 5 degree north and 10 degree south of the equator. Precipitation in the equatorial region is heavy, between 60 inches and 106 inches and is well distributed throughout the year. Due to this abundant rainfall, tropical rainforest climate is usually found at latitudes within five degrees North and South of the equator.
[5] Which among the following statements is true regarding International Date line?
A.
It is 180° Longitude
B.
It is a straight line
C.
It is a big circle
D.
It is a curved line beyond earth
Ans:
It is 180° Longitude
Explanation :
The International Date Line (IDL) is an imaginary line on the surface of the Earth, that runs from the north to the South Pole and demarcates one calendar day from the next. It passes through the middle of the Pacific Ocean, roughly following the 180° longitude but it deviates to pass around some territories and island groups.
[6] The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth?
A.
49°
B.
66°
C.
63°
D.
69°51'
Ans:
66°
Explanation :
During the June solstice the Earth's North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of 66.5 degrees N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.
[7] Dolomite is a/an –
A.
Sedimentary rock
B.
Plutonic rock
C.
Igneous rock
D.
Metamorphic rock
Ans:
Sedimentary rock
Explanation :
Dolomite a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory. Dolomite is used as an ornamental stone, a concrete aggregate, a source of magnesium oxide and in the Pidgeon process for the production of magnesium. It is an important petroleum reservoir rock, and serves as the host rock for large strata bound Mississippi Valley-Type (MVT) ore deposits of base metals such as lead, zinc, and copper.
[8] Which one of the following rivers forms an estuary?
A.
Ganga
B.
Tapti
C.
Godavari
D.
Mahanadi
Ans:
Tapti
Explanation :
Tapti river empties into the Gulf of Cambay of the Arabian Sea, forming an estuary. It is fed by monsoon rains. The mean flow rate is about 600 cu m per sec, with the maximum in the summer. The Tapti is navigable by small craft for a distance of 50 km from the mouth. In some places it is used for irrigation. The seaport of Surat is located in the estuary.
[9] How much of the Earth's land surface is desert?
A.
1/10th
B.
1/5th
C.
1/3rd
D.
(3) 1/6th
Ans:
1/3rd
Explanation :
Deserts actually make up 33%, or 1/3rd of the land's surface area. That might sound like a surprisingly large amount, but that's based on the official definition of a desert.
[10] Which one of the following is an igneous rock?
A.
Sandstone
B.
Shale
C.
Quartzite
D.
Granite
Ans:
Granite
Explanation :
Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.
[11] Ice glacier's melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in–
A.
Greenland
B.
Antarctica
C.
Himalayas
D.
Arctic
Ans:
Antarctica
Explanation :
One of today's prevalent water issues is the rise in sea level. It is mainly caused by two phenomena: global warming and ozone depletion. Polar ice caps in Antarctica and other places are melting fast. This has led to increase in sea level over the years.
[12] The angle between the magnetic meridian and the geographical meridian at a place is –
A.
Azimuth
B.
Dip
C.
Declination
D.
Latitude
Ans:
Declination
Explanation :
Magnetic declination is the angle between compass north (the direction the north end of a compass needle points) and true north (the direction along the earth's surface towards the geographic North Pole.
[13] Widening of a river valley takes place due to –
A.
Corrosion
B.
Lateral erosion
C.
Corrasion
D.
Hydraulic action
Ans:
Lateral erosion
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Chinook, originally meant a warming wind from the ocean into the interior regions of the Pacific Northwest (the Chinook people lived near the ocean, along the lower Columbia River). A strong Chinook can make snow one foot deep almost vanish in one day. The snow partly melts and partly evaporates in the dry wind. Chinook winds have been observed to raise winter temperature, often from below -20°C (-4°F) to as high as 10-20°C (50-68°F) for a few hours or days, then temperatures plummet to their base level.
[2] The climate of North America is influenced during winter by the –
A.
Polar airmasses
B.
Warm airmasses
C.
Continental airmasses
D.
Tropical airmasses
Ans:
Tropical airmasses
Explanation :
Maritime tropical (mT) air masses affecting North America most often originate over the warm water of the Gulf of Mexico, the Caribbean Sea, or the adjacent western Atlantic Ocean. As expected, mT air masses are warm to hot, and they are humid. During winter, when cP air dominates the central and eastern United States, mT air only occasionally enters this part of the country. However, during the summer, mT air masses from the Gulf, Caribbean, and adjacent Atlantic are more common and cover a much wider area of the continent.
[3] Katrina is the name given to .
A.
Satellite
B.
Star
C.
Heat wave
D.
Hurricane
Ans:
Hurricane
Explanation :
Hurricane Katrina was the deadliest and most destructive Atlantic hurricane of the 2005 Atlantic hurricane season. It was the costliest natural disaster, as well as one of the five deadliest hurricanes, in the history of the United States. At least 1,833 people died in the hurricane and subsequent floods, making it the deadliest U.S. hurricane since the 1928 Okeechobee hurricane.
[4] In which region does rainfall occur throughout the year?
A.
Mediterranean
B.
Equatorial
C.
Tropical
D.
Temperate
Ans:
Equatorial
Explanation :
The equatorial climate is found between 5 degree north and 10 degree south of the equator. Precipitation in the equatorial region is heavy, between 60 inches and 106 inches and is well distributed throughout the year. Due to this abundant rainfall, tropical rainforest climate is usually found at latitudes within five degrees North and South of the equator.
[5] Which among the following statements is true regarding International Date line?
A.
It is 180° Longitude
B.
It is a straight line
C.
It is a big circle
D.
It is a curved line beyond earth
Ans:
It is 180° Longitude
Explanation :
The International Date Line (IDL) is an imaginary line on the surface of the Earth, that runs from the north to the South Pole and demarcates one calendar day from the next. It passes through the middle of the Pacific Ocean, roughly following the 180° longitude but it deviates to pass around some territories and island groups.
[6] The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth?
A.
49°
B.
66°
C.
63°
D.
69°51'
Ans:
66°
Explanation :
During the June solstice the Earth's North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of 66.5 degrees N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.
[7] Dolomite is a/an –
A.
Sedimentary rock
B.
Plutonic rock
C.
Igneous rock
D.
Metamorphic rock
Ans:
Sedimentary rock
Explanation :
Dolomite a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory. Dolomite is used as an ornamental stone, a concrete aggregate, a source of magnesium oxide and in the Pidgeon process for the production of magnesium. It is an important petroleum reservoir rock, and serves as the host rock for large strata bound Mississippi Valley-Type (MVT) ore deposits of base metals such as lead, zinc, and copper.
[8] Which one of the following rivers forms an estuary?
A.
Ganga
B.
Tapti
C.
Godavari
D.
Mahanadi
Ans:
Tapti
Explanation :
Tapti river empties into the Gulf of Cambay of the Arabian Sea, forming an estuary. It is fed by monsoon rains. The mean flow rate is about 600 cu m per sec, with the maximum in the summer. The Tapti is navigable by small craft for a distance of 50 km from the mouth. In some places it is used for irrigation. The seaport of Surat is located in the estuary.
[9] How much of the Earth's land surface is desert?
A.
1/10th
B.
1/5th
C.
1/3rd
D.
(3) 1/6th
Ans:
1/3rd
Explanation :
Deserts actually make up 33%, or 1/3rd of the land's surface area. That might sound like a surprisingly large amount, but that's based on the official definition of a desert.
[10] Which one of the following is an igneous rock?
A.
Sandstone
B.
Shale
C.
Quartzite
D.
Granite
Ans:
Granite
Explanation :
Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.
[11] Ice glacier's melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in–
A.
Greenland
B.
Antarctica
C.
Himalayas
D.
Arctic
Ans:
Antarctica
Explanation :
One of today's prevalent water issues is the rise in sea level. It is mainly caused by two phenomena: global warming and ozone depletion. Polar ice caps in Antarctica and other places are melting fast. This has led to increase in sea level over the years.
[12] The angle between the magnetic meridian and the geographical meridian at a place is –
A.
Azimuth
B.
Dip
C.
Declination
D.
Latitude
Ans:
Declination
Explanation :
Magnetic declination is the angle between compass north (the direction the north end of a compass needle points) and true north (the direction along the earth's surface towards the geographic North Pole.
[13] Widening of a river valley takes place due to –
A.
Corrosion
B.
Lateral erosion
C.
Corrasion
D.
Hydraulic action
Ans:
Lateral erosion
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Hurricane Katrina was the deadliest and most destructive Atlantic hurricane of the 2005 Atlantic hurricane season. It was the costliest natural disaster, as well as one of the five deadliest hurricanes, in the history of the United States. At least 1,833 people died in the hurricane and subsequent floods, making it the deadliest U.S. hurricane since the 1928 Okeechobee hurricane.
[4] In which region does rainfall occur throughout the year?
A.
Mediterranean
B.
Equatorial
C.
Tropical
D.
Temperate
Ans:
Equatorial
Explanation :
The equatorial climate is found between 5 degree north and 10 degree south of the equator. Precipitation in the equatorial region is heavy, between 60 inches and 106 inches and is well distributed throughout the year. Due to this abundant rainfall, tropical rainforest climate is usually found at latitudes within five degrees North and South of the equator.
[5] Which among the following statements is true regarding International Date line?
A.
It is 180° Longitude
B.
It is a straight line
C.
It is a big circle
D.
It is a curved line beyond earth
Ans:
It is 180° Longitude
Explanation :
The International Date Line (IDL) is an imaginary line on the surface of the Earth, that runs from the north to the South Pole and demarcates one calendar day from the next. It passes through the middle of the Pacific Ocean, roughly following the 180° longitude but it deviates to pass around some territories and island groups.
[6] The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth?
A.
49°
B.
66°
C.
63°
D.
69°51'
Ans:
66°
Explanation :
During the June solstice the Earth's North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of 66.5 degrees N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.
[7] Dolomite is a/an –
A.
Sedimentary rock
B.
Plutonic rock
C.
Igneous rock
D.
Metamorphic rock
Ans:
Sedimentary rock
Explanation :
Dolomite a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory. Dolomite is used as an ornamental stone, a concrete aggregate, a source of magnesium oxide and in the Pidgeon process for the production of magnesium. It is an important petroleum reservoir rock, and serves as the host rock for large strata bound Mississippi Valley-Type (MVT) ore deposits of base metals such as lead, zinc, and copper.
[8] Which one of the following rivers forms an estuary?
A.
Ganga
B.
Tapti
C.
Godavari
D.
Mahanadi
Ans:
Tapti
Explanation :
Tapti river empties into the Gulf of Cambay of the Arabian Sea, forming an estuary. It is fed by monsoon rains. The mean flow rate is about 600 cu m per sec, with the maximum in the summer. The Tapti is navigable by small craft for a distance of 50 km from the mouth. In some places it is used for irrigation. The seaport of Surat is located in the estuary.
[9] How much of the Earth's land surface is desert?
A.
1/10th
B.
1/5th
C.
1/3rd
D.
(3) 1/6th
Ans:
1/3rd
Explanation :
Deserts actually make up 33%, or 1/3rd of the land's surface area. That might sound like a surprisingly large amount, but that's based on the official definition of a desert.
[10] Which one of the following is an igneous rock?
A.
Sandstone
B.
Shale
C.
Quartzite
D.
Granite
Ans:
Granite
Explanation :
Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.
[11] Ice glacier's melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in–
A.
Greenland
B.
Antarctica
C.
Himalayas
D.
Arctic
Ans:
Antarctica
Explanation :
One of today's prevalent water issues is the rise in sea level. It is mainly caused by two phenomena: global warming and ozone depletion. Polar ice caps in Antarctica and other places are melting fast. This has led to increase in sea level over the years.
[12] The angle between the magnetic meridian and the geographical meridian at a place is –
A.
Azimuth
B.
Dip
C.
Declination
D.
Latitude
Ans:
Declination
Explanation :
Magnetic declination is the angle between compass north (the direction the north end of a compass needle points) and true north (the direction along the earth's surface towards the geographic North Pole.
[13] Widening of a river valley takes place due to –
A.
Corrosion
B.
Lateral erosion
C.
Corrasion
D.
Hydraulic action
Ans:
Lateral erosion
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
The International Date Line (IDL) is an imaginary line on the surface of the Earth, that runs from the north to the South Pole and demarcates one calendar day from the next. It passes through the middle of the Pacific Ocean, roughly following the 180° longitude but it deviates to pass around some territories and island groups.
[6] The sunlight is available 24 hours on the longest day at which of the following latitudes of the earth?
A.
49°
B.
66°
C.
63°
D.
69°51'
Ans:
66°
Explanation :
During the June solstice the Earth's North Pole is tilted 23.5 degrees towards the Sun relative to the circle of illumination. This phenomenon keeps all places above latitude of 66.5 degrees N in 24 hours of sunlight, while locations below latitude of 66.5 degrees are in darkness.
[7] Dolomite is a/an –
A.
Sedimentary rock
B.
Plutonic rock
C.
Igneous rock
D.
Metamorphic rock
Ans:
Sedimentary rock
Explanation :
Dolomite a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory. Dolomite is used as an ornamental stone, a concrete aggregate, a source of magnesium oxide and in the Pidgeon process for the production of magnesium. It is an important petroleum reservoir rock, and serves as the host rock for large strata bound Mississippi Valley-Type (MVT) ore deposits of base metals such as lead, zinc, and copper.
[8] Which one of the following rivers forms an estuary?
A.
Ganga
B.
Tapti
C.
Godavari
D.
Mahanadi
Ans:
Tapti
Explanation :
Tapti river empties into the Gulf of Cambay of the Arabian Sea, forming an estuary. It is fed by monsoon rains. The mean flow rate is about 600 cu m per sec, with the maximum in the summer. The Tapti is navigable by small craft for a distance of 50 km from the mouth. In some places it is used for irrigation. The seaport of Surat is located in the estuary.
[9] How much of the Earth's land surface is desert?
A.
1/10th
B.
1/5th
C.
1/3rd
D.
(3) 1/6th
Ans:
1/3rd
Explanation :
Deserts actually make up 33%, or 1/3rd of the land's surface area. That might sound like a surprisingly large amount, but that's based on the official definition of a desert.
[10] Which one of the following is an igneous rock?
A.
Sandstone
B.
Shale
C.
Quartzite
D.
Granite
Ans:
Granite
Explanation :
Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.
[11] Ice glacier's melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in–
A.
Greenland
B.
Antarctica
C.
Himalayas
D.
Arctic
Ans:
Antarctica
Explanation :
One of today's prevalent water issues is the rise in sea level. It is mainly caused by two phenomena: global warming and ozone depletion. Polar ice caps in Antarctica and other places are melting fast. This has led to increase in sea level over the years.
[12] The angle between the magnetic meridian and the geographical meridian at a place is –
A.
Azimuth
B.
Dip
C.
Declination
D.
Latitude
Ans:
Declination
Explanation :
Magnetic declination is the angle between compass north (the direction the north end of a compass needle points) and true north (the direction along the earth's surface towards the geographic North Pole.
[13] Widening of a river valley takes place due to –
A.
Corrosion
B.
Lateral erosion
C.
Corrasion
D.
Hydraulic action
Ans:
Lateral erosion
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Dolomite a sedimentary rock resembling limestone but consisting principally of the mineral dolomite. It is an important source of magnesium and its compounds, and is used as a building material and refractory. Dolomite is used as an ornamental stone, a concrete aggregate, a source of magnesium oxide and in the Pidgeon process for the production of magnesium. It is an important petroleum reservoir rock, and serves as the host rock for large strata bound Mississippi Valley-Type (MVT) ore deposits of base metals such as lead, zinc, and copper.
[8] Which one of the following rivers forms an estuary?
A.
Ganga
B.
Tapti
C.
Godavari
D.
Mahanadi
Ans:
Tapti
Explanation :
Tapti river empties into the Gulf of Cambay of the Arabian Sea, forming an estuary. It is fed by monsoon rains. The mean flow rate is about 600 cu m per sec, with the maximum in the summer. The Tapti is navigable by small craft for a distance of 50 km from the mouth. In some places it is used for irrigation. The seaport of Surat is located in the estuary.
[9] How much of the Earth's land surface is desert?
A.
1/10th
B.
1/5th
C.
1/3rd
D.
(3) 1/6th
Ans:
1/3rd
Explanation :
Deserts actually make up 33%, or 1/3rd of the land's surface area. That might sound like a surprisingly large amount, but that's based on the official definition of a desert.
[10] Which one of the following is an igneous rock?
A.
Sandstone
B.
Shale
C.
Quartzite
D.
Granite
Ans:
Granite
Explanation :
Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.
[11] Ice glacier's melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in–
A.
Greenland
B.
Antarctica
C.
Himalayas
D.
Arctic
Ans:
Antarctica
Explanation :
One of today's prevalent water issues is the rise in sea level. It is mainly caused by two phenomena: global warming and ozone depletion. Polar ice caps in Antarctica and other places are melting fast. This has led to increase in sea level over the years.
[12] The angle between the magnetic meridian and the geographical meridian at a place is –
A.
Azimuth
B.
Dip
C.
Declination
D.
Latitude
Ans:
Declination
Explanation :
Magnetic declination is the angle between compass north (the direction the north end of a compass needle points) and true north (the direction along the earth's surface towards the geographic North Pole.
[13] Widening of a river valley takes place due to –
A.
Corrosion
B.
Lateral erosion
C.
Corrasion
D.
Hydraulic action
Ans:
Lateral erosion
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Deserts actually make up 33%, or 1/3rd of the land's surface area. That might sound like a surprisingly large amount, but that's based on the official definition of a desert.
[10] Which one of the following is an igneous rock?
A.
Sandstone
B.
Shale
C.
Quartzite
D.
Granite
Ans:
Granite
Explanation :
Igneous rock is one of the three main rock types, the others being sedimentary and metamorphic rock. In terms of modes of occurrence, igneous rocks can be either intrusive (plutonic), extrusive (volcanic) or hypabyssal. Granite is an intrusive igneous rock which is formed from magma that cools and solidifies within the crust of a planet. They form central cores of major mountain ranges.
[11] Ice glacier's melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in–
A.
Greenland
B.
Antarctica
C.
Himalayas
D.
Arctic
Ans:
Antarctica
Explanation :
One of today's prevalent water issues is the rise in sea level. It is mainly caused by two phenomena: global warming and ozone depletion. Polar ice caps in Antarctica and other places are melting fast. This has led to increase in sea level over the years.
[12] The angle between the magnetic meridian and the geographical meridian at a place is –
A.
Azimuth
B.
Dip
C.
Declination
D.
Latitude
Ans:
Declination
Explanation :
Magnetic declination is the angle between compass north (the direction the north end of a compass needle points) and true north (the direction along the earth's surface towards the geographic North Pole.
[13] Widening of a river valley takes place due to –
A.
Corrosion
B.
Lateral erosion
C.
Corrasion
D.
Hydraulic action
Ans:
Lateral erosion
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
One of today's prevalent water issues is the rise in sea level. It is mainly caused by two phenomena: global warming and ozone depletion. Polar ice caps in Antarctica and other places are melting fast. This has led to increase in sea level over the years.
[12] The angle between the magnetic meridian and the geographical meridian at a place is –
A.
Azimuth
B.
Dip
C.
Declination
D.
Latitude
Ans:
Declination
Explanation :
Magnetic declination is the angle between compass north (the direction the north end of a compass needle points) and true north (the direction along the earth's surface towards the geographic North Pole.
[13] Widening of a river valley takes place due to –
A.
Corrosion
B.
Lateral erosion
C.
Corrasion
D.
Hydraulic action
Ans:
Lateral erosion
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Lateral or sideways erosion widens the river valley; while, Vertical or downward erosion deepens the river valley. Due to continued lateral erosion, the river valley increasingly becomes broader and shallower. The valley slopes are also eroded by weathering and mass wasting and by the development of tributary valleys.
[14] Which type of lake is formed by volcanic activities?
A.
Lagoon
B.
Fresh water lake
C.
Cladera lake
D.
Karst lake
Ans:
Cladera lake
Explanation :
Lakes which form inside calderas (a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption) are called caldera lakes. These lakes form as the created depression is filled by water. For example, Lake Pinatubo, Philippines, formed after the 1991 eruption of Mount Pinatubo filled the depression with water from monsoon rains.
[15] Meanders are the features formed by –
A.
glaciers
B.
rivers
C.
winds
D.
ocean waters
Ans:
rivers
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Reh refers to a mixture of soluble sodium salts appearing as efflorescence on the ground in arid or semiarid regions in India. It covers the land in the form of a white layer. It is also known as Kallar.
[16] Which is the hottest planet in the Solar System?
A.
Jupiter
B.
Saturn
C.
Venus
D.
Uranus
Ans:
Venus
Explanation :
Mercury is closer to the sun, but the atmosphere on Venus actually makes it hotter. Even on the night side, the temperature doesn't drop by much (comparatively) because of the carbon dioxide, about 95%, atmosphere. The atmospheric pressure of Venus is also about 90 times greater than that of Earth.
[17] The planets on either side of the Earth are –
A.
Mars and Jupiter
B.
Mercury and Venus
C.
Venus and Saturn
D.
Mars and Venus
Ans:
Mars and Venus
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Earth is the third planet from the 'Sun in the following order from the Sun: Mercury, Venus, Earth, and Mars. The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.
[18] Which planet looks reddish in the night sky?
A.
Jupiter
B.
Saturn
C.
Mars
D.
Mercury
Ans:
Mars
Explanation :
Mars is the fourth planet from the Sun and the seventh largest. The planet probably got this name due to its red color; Mars is sometimes referred to as the Red Planet as the iron oxide prevalent on its surface gives it a reddish appearance.
[19] Name the first Asian country to Orbit Mars.
A.
Japan
B.
Pakistan
C.
China
D.
India
Ans:
India
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[20] Which of the following Scientist proved that the path of each planet around the Sun is elliptical?
A.
Kepler
B.
Galileo
C.
Newton
D.
Copernicus
Ans:
Kepler
Explanation :
India is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt. Its Mars Orbiter Mission (MOM), also called Mangalyaan, was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It has been orbiting Mars since 24 September 2014.
[21] A drainage pattern where a river is joined by its tributaries approximately at right angles is .
A.
Dendritic
B.
Trellis
C.
Rectangular
D.
Radial
Ans:
Trellis
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
When a river is joined by its tributaries at almost right angles, it develops a trellis pattern. Trellis pattern develops where hard and soft rocks exist parallel to each other.
[22] The core of the earth is also known as –
A.
Lithosphere
B.
Mesosphere
C.
Barysphere
D.
Centrosphere
Ans:
Barysphere
Explanation :
The interior of the Earth beneath the lithosphere, including both the mantle and the core, is known as barysphere. However, it is sometimes used to refer only to the core or only to the mantle.
[23] A level of atmosphere which is composed partly of electrons and positive ions is called –
A.
Troposphere
B.
Ionosphere
C.
Stratosphere
D.
Mesosphere
Ans:
Ionosphere
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
Ionosphere is composed partly of electrons and positive ions. It is a region of Earth's upper atmosphere, from about 60 km to 1,000 km altitude, that is ionized by solar radiation. This layer is also called thermosphere as its temperature rises with height.
[24] The amount of insolation received at a place on the surface of the earth depends upon:
A.
its climate
B.
the longitude of the place
C.
its latitude
D.
the altitude of the place
Ans:
its latitude
Explanation :
0
[25] Terrigenous deposits are found in –
A.
Deep Sea Plain
B.
Ocean Trenches
C.
Rift Valley
D.
Continental Shelf and Slope
Ans:
Continental Shelf and Slope
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.
Explanation :
In oceanography, terrigenous sediments are those derived from the erosion of rocks on land; that is, they are derived from terrestrial (as opposed to marine) environments. Consisting of sand, mud, and silt carried to sea by rivers, they are mainly deposited on the continental shelfand slopes. Terrigenous sediments that reach the continental shelf are often stored in submarine canyons on the continental slope. Turbidity currents carry them down into the deep sea.