[1] Trade winds blow from the –
A.
equatorial low pressure
B.
polar high pressure
C.
subtropical high pressure
D.
subpolar low pressure
Ans:
subtropical high pressure
Explanation :
Wind flows outward down the pressure gradient away from the subtropical highs. As it does so, it encounters the Coriolis Effect caused by the rotation of the Earth. This force causes the winds in the Northern Hemisphere to move from the east towards the west below the subtropical high, and from the west towards the east above the subtropical high. The opposite is true in the Southern Hemisphere. Above the subtropical high winds move from east to west, and below the subtropical high winds move from west to the east.
[2] Equatorial regions experience –
A.
warm and dry climate
B.
hot and humid climate
C.
wet and windy climate
D.
moderately pleasant climate
Ans:
hot and humid climate
Explanation :
The temperature of the equatorial regions is hot throughout the year, with a very low temperature range usually of less than 3 degrees celsius. Tropical rainforest climate is a type of tropical climate in which there is little or no dry season - all months have mean precipitation values of at least 60 mm. Tropical rainforest climates have no pronounced summer or winter; it is typically hot and wet throughout the year and rainfall is both heavy and frequent.
[3] The Sargasso sea is situated in the –
A.
Atlantic Ocean
B.
Pacific Ocean
C.
Indian Ocean
D.
Arctic Ocean
Ans:
Atlantic Ocean
Explanation :
The Sargasso Sea is a region in the gyre in the middle of the North Atlantic Ocean. The Sargasso Sea is home to seaweed of the genus Sargassum (origin of its name), which floats en masse on the surface there.
[4] The eastward continuation of the Brazil current is called:
A.
South Atlantic drift
B.
Counter Equatorial drift
C.
West Atlantic drift
D.
North Atlantic drift
Ans:
South Atlantic drift
Explanation :
The eastward continuation of the Brazil Current is called the South Atlantic Drift. It is also known as the West Wind Drift because it forms at 40° South latitude due to the impact of the Westerlies. The eastward movement is due to the Earth's rotation.
[5] Sea breeze is formed during –
A.
Day time
B.
Night time
C.
Both
D.
Seasonal
Ans:
Day time
Explanation :
Sea breezes and all other winds blow from more atmospheric pressure to less atmospheric pressure. Water heats up and cools down slower than land. During the day, the land is heated up and is less dense than the water while at night, the water is less dense than the land. The more denser it is, the more the atmospheric pressure there is. Therefore, sea breezes occur during the day but not at night.
[6] The coral reefs are the marine counterparts of –
A.
Temperate forests
B.
Tropical rain forests
C.
Savannahs
D.
Scrubland
Ans:
Tropical rain forests
Explanation :
The term "coral reef' generally refers to a marine ecosystem in which the main organisms are corals that house algal symbionts within their tissues. These ecosystems require: 1) fully marine waters; 2) warm temperatures; and 3) ample sunlight. They are therefore restricted to shallow waters of tropical and subtropical regions.
[7] The sea bed sloping gradually and bordering the continent is known as:
A.
Coast
B.
Continental Shelf
C.
Continental Platform.
D.
Continental Slope.
Ans:
Continental Shelf
Explanation :
The continental shelf is the extended perimeter of each continent and associated coastal plain. Much of the shelf was exposed during glacial periods, but is now submerged under relatively shallow seas (known as shelf seas) and gulfs, and was almost similarly submerged during other interglacial periods. The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope followed by the flatter continental rise. Sediment from the continent above cascades down the slope and accumulates as a pile or seaiment at the base of the slope, called the continental rise.
[8] A special type of well in which water rises automatically under the pressure of a column of water to the ground surface through a hole is known as –
A.
Artisian well
B.
Spring
C.
Hot spring
D.
Geyser
Ans:
Artisian well
Explanation :
An artesian well is a pumpless water source that uses pipes to allow underground water that is under pressure to rise to the surface. This type of well seems to defy gravity because the pressure that builds up between layers of rock gets relieved when the water finds a path to the open air. In addition, the water has been naturally filtered because It passes through porous rock as it seeps into the Earth to reach the aquifer, which is the underground water source.
[9] The soil conservation method in which mountain slope is cut into step is –
A.
Contour ploughing
B.
Cover planting
C.
Strip cropping
D.
Terracing
Ans:
Terracing
Explanation :
In agriculture, a terist is a piece of sloped plane that has been landscaped into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping, therefore, is called terracing. Graduated terrace steps are commonly used to farm on hilly or mountainous terrain. Terraced fields decrease erosion and surface run off and are effective for growing crops requiring much water, such as rice.
[10] For the cultivation of Tobacco the soil should be rich in –
A.
calcareous matter
B.
nitrogen
C.
organic content
D.
potash
Ans:
potash
Explanation :
Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era.
[11] Evergreen rain forest is mainly found in regions having well distributed annual rainfall –
A.
Below 50 cm
B.
50-100 cm
C.
100-200 cm
D.
More than 200 cm
Ans:
More than 200 cm
Explanation :
Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C. They occupy about seven per cent of the Earth's land surface and harbour more than half of the world's plants and animals
[12] Mangrove forests occur in –
A.
high mountains
B.
snowy plains
C.
coastal swamps
D.
interior plateaus
Ans:
coastal swamps
Explanation :
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics - mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.
[13] In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called?
A.
shelter belts
B.
agroforests
C.
wind breaks
D.
social forests
Ans:
wind breaks
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
Wind flows outward down the pressure gradient away from the subtropical highs. As it does so, it encounters the Coriolis Effect caused by the rotation of the Earth. This force causes the winds in the Northern Hemisphere to move from the east towards the west below the subtropical high, and from the west towards the east above the subtropical high. The opposite is true in the Southern Hemisphere. Above the subtropical high winds move from east to west, and below the subtropical high winds move from west to the east.
[2] Equatorial regions experience –
A.
warm and dry climate
B.
hot and humid climate
C.
wet and windy climate
D.
moderately pleasant climate
Ans:
hot and humid climate
Explanation :
The temperature of the equatorial regions is hot throughout the year, with a very low temperature range usually of less than 3 degrees celsius. Tropical rainforest climate is a type of tropical climate in which there is little or no dry season - all months have mean precipitation values of at least 60 mm. Tropical rainforest climates have no pronounced summer or winter; it is typically hot and wet throughout the year and rainfall is both heavy and frequent.
[3] The Sargasso sea is situated in the –
A.
Atlantic Ocean
B.
Pacific Ocean
C.
Indian Ocean
D.
Arctic Ocean
Ans:
Atlantic Ocean
Explanation :
The Sargasso Sea is a region in the gyre in the middle of the North Atlantic Ocean. The Sargasso Sea is home to seaweed of the genus Sargassum (origin of its name), which floats en masse on the surface there.
[4] The eastward continuation of the Brazil current is called:
A.
South Atlantic drift
B.
Counter Equatorial drift
C.
West Atlantic drift
D.
North Atlantic drift
Ans:
South Atlantic drift
Explanation :
The eastward continuation of the Brazil Current is called the South Atlantic Drift. It is also known as the West Wind Drift because it forms at 40° South latitude due to the impact of the Westerlies. The eastward movement is due to the Earth's rotation.
[5] Sea breeze is formed during –
A.
Day time
B.
Night time
C.
Both
D.
Seasonal
Ans:
Day time
Explanation :
Sea breezes and all other winds blow from more atmospheric pressure to less atmospheric pressure. Water heats up and cools down slower than land. During the day, the land is heated up and is less dense than the water while at night, the water is less dense than the land. The more denser it is, the more the atmospheric pressure there is. Therefore, sea breezes occur during the day but not at night.
[6] The coral reefs are the marine counterparts of –
A.
Temperate forests
B.
Tropical rain forests
C.
Savannahs
D.
Scrubland
Ans:
Tropical rain forests
Explanation :
The term "coral reef' generally refers to a marine ecosystem in which the main organisms are corals that house algal symbionts within their tissues. These ecosystems require: 1) fully marine waters; 2) warm temperatures; and 3) ample sunlight. They are therefore restricted to shallow waters of tropical and subtropical regions.
[7] The sea bed sloping gradually and bordering the continent is known as:
A.
Coast
B.
Continental Shelf
C.
Continental Platform.
D.
Continental Slope.
Ans:
Continental Shelf
Explanation :
The continental shelf is the extended perimeter of each continent and associated coastal plain. Much of the shelf was exposed during glacial periods, but is now submerged under relatively shallow seas (known as shelf seas) and gulfs, and was almost similarly submerged during other interglacial periods. The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope followed by the flatter continental rise. Sediment from the continent above cascades down the slope and accumulates as a pile or seaiment at the base of the slope, called the continental rise.
[8] A special type of well in which water rises automatically under the pressure of a column of water to the ground surface through a hole is known as –
A.
Artisian well
B.
Spring
C.
Hot spring
D.
Geyser
Ans:
Artisian well
Explanation :
An artesian well is a pumpless water source that uses pipes to allow underground water that is under pressure to rise to the surface. This type of well seems to defy gravity because the pressure that builds up between layers of rock gets relieved when the water finds a path to the open air. In addition, the water has been naturally filtered because It passes through porous rock as it seeps into the Earth to reach the aquifer, which is the underground water source.
[9] The soil conservation method in which mountain slope is cut into step is –
A.
Contour ploughing
B.
Cover planting
C.
Strip cropping
D.
Terracing
Ans:
Terracing
Explanation :
In agriculture, a terist is a piece of sloped plane that has been landscaped into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping, therefore, is called terracing. Graduated terrace steps are commonly used to farm on hilly or mountainous terrain. Terraced fields decrease erosion and surface run off and are effective for growing crops requiring much water, such as rice.
[10] For the cultivation of Tobacco the soil should be rich in –
A.
calcareous matter
B.
nitrogen
C.
organic content
D.
potash
Ans:
potash
Explanation :
Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era.
[11] Evergreen rain forest is mainly found in regions having well distributed annual rainfall –
A.
Below 50 cm
B.
50-100 cm
C.
100-200 cm
D.
More than 200 cm
Ans:
More than 200 cm
Explanation :
Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C. They occupy about seven per cent of the Earth's land surface and harbour more than half of the world's plants and animals
[12] Mangrove forests occur in –
A.
high mountains
B.
snowy plains
C.
coastal swamps
D.
interior plateaus
Ans:
coastal swamps
Explanation :
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics - mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.
[13] In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called?
A.
shelter belts
B.
agroforests
C.
wind breaks
D.
social forests
Ans:
wind breaks
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
The Sargasso Sea is a region in the gyre in the middle of the North Atlantic Ocean. The Sargasso Sea is home to seaweed of the genus Sargassum (origin of its name), which floats en masse on the surface there.
[4] The eastward continuation of the Brazil current is called:
A.
South Atlantic drift
B.
Counter Equatorial drift
C.
West Atlantic drift
D.
North Atlantic drift
Ans:
South Atlantic drift
Explanation :
The eastward continuation of the Brazil Current is called the South Atlantic Drift. It is also known as the West Wind Drift because it forms at 40° South latitude due to the impact of the Westerlies. The eastward movement is due to the Earth's rotation.
[5] Sea breeze is formed during –
A.
Day time
B.
Night time
C.
Both
D.
Seasonal
Ans:
Day time
Explanation :
Sea breezes and all other winds blow from more atmospheric pressure to less atmospheric pressure. Water heats up and cools down slower than land. During the day, the land is heated up and is less dense than the water while at night, the water is less dense than the land. The more denser it is, the more the atmospheric pressure there is. Therefore, sea breezes occur during the day but not at night.
[6] The coral reefs are the marine counterparts of –
A.
Temperate forests
B.
Tropical rain forests
C.
Savannahs
D.
Scrubland
Ans:
Tropical rain forests
Explanation :
The term "coral reef' generally refers to a marine ecosystem in which the main organisms are corals that house algal symbionts within their tissues. These ecosystems require: 1) fully marine waters; 2) warm temperatures; and 3) ample sunlight. They are therefore restricted to shallow waters of tropical and subtropical regions.
[7] The sea bed sloping gradually and bordering the continent is known as:
A.
Coast
B.
Continental Shelf
C.
Continental Platform.
D.
Continental Slope.
Ans:
Continental Shelf
Explanation :
The continental shelf is the extended perimeter of each continent and associated coastal plain. Much of the shelf was exposed during glacial periods, but is now submerged under relatively shallow seas (known as shelf seas) and gulfs, and was almost similarly submerged during other interglacial periods. The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope followed by the flatter continental rise. Sediment from the continent above cascades down the slope and accumulates as a pile or seaiment at the base of the slope, called the continental rise.
[8] A special type of well in which water rises automatically under the pressure of a column of water to the ground surface through a hole is known as –
A.
Artisian well
B.
Spring
C.
Hot spring
D.
Geyser
Ans:
Artisian well
Explanation :
An artesian well is a pumpless water source that uses pipes to allow underground water that is under pressure to rise to the surface. This type of well seems to defy gravity because the pressure that builds up between layers of rock gets relieved when the water finds a path to the open air. In addition, the water has been naturally filtered because It passes through porous rock as it seeps into the Earth to reach the aquifer, which is the underground water source.
[9] The soil conservation method in which mountain slope is cut into step is –
A.
Contour ploughing
B.
Cover planting
C.
Strip cropping
D.
Terracing
Ans:
Terracing
Explanation :
In agriculture, a terist is a piece of sloped plane that has been landscaped into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping, therefore, is called terracing. Graduated terrace steps are commonly used to farm on hilly or mountainous terrain. Terraced fields decrease erosion and surface run off and are effective for growing crops requiring much water, such as rice.
[10] For the cultivation of Tobacco the soil should be rich in –
A.
calcareous matter
B.
nitrogen
C.
organic content
D.
potash
Ans:
potash
Explanation :
Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era.
[11] Evergreen rain forest is mainly found in regions having well distributed annual rainfall –
A.
Below 50 cm
B.
50-100 cm
C.
100-200 cm
D.
More than 200 cm
Ans:
More than 200 cm
Explanation :
Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C. They occupy about seven per cent of the Earth's land surface and harbour more than half of the world's plants and animals
[12] Mangrove forests occur in –
A.
high mountains
B.
snowy plains
C.
coastal swamps
D.
interior plateaus
Ans:
coastal swamps
Explanation :
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics - mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.
[13] In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called?
A.
shelter belts
B.
agroforests
C.
wind breaks
D.
social forests
Ans:
wind breaks
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
Sea breezes and all other winds blow from more atmospheric pressure to less atmospheric pressure. Water heats up and cools down slower than land. During the day, the land is heated up and is less dense than the water while at night, the water is less dense than the land. The more denser it is, the more the atmospheric pressure there is. Therefore, sea breezes occur during the day but not at night.
[6] The coral reefs are the marine counterparts of –
A.
Temperate forests
B.
Tropical rain forests
C.
Savannahs
D.
Scrubland
Ans:
Tropical rain forests
Explanation :
The term "coral reef' generally refers to a marine ecosystem in which the main organisms are corals that house algal symbionts within their tissues. These ecosystems require: 1) fully marine waters; 2) warm temperatures; and 3) ample sunlight. They are therefore restricted to shallow waters of tropical and subtropical regions.
[7] The sea bed sloping gradually and bordering the continent is known as:
A.
Coast
B.
Continental Shelf
C.
Continental Platform.
D.
Continental Slope.
Ans:
Continental Shelf
Explanation :
The continental shelf is the extended perimeter of each continent and associated coastal plain. Much of the shelf was exposed during glacial periods, but is now submerged under relatively shallow seas (known as shelf seas) and gulfs, and was almost similarly submerged during other interglacial periods. The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope followed by the flatter continental rise. Sediment from the continent above cascades down the slope and accumulates as a pile or seaiment at the base of the slope, called the continental rise.
[8] A special type of well in which water rises automatically under the pressure of a column of water to the ground surface through a hole is known as –
A.
Artisian well
B.
Spring
C.
Hot spring
D.
Geyser
Ans:
Artisian well
Explanation :
An artesian well is a pumpless water source that uses pipes to allow underground water that is under pressure to rise to the surface. This type of well seems to defy gravity because the pressure that builds up between layers of rock gets relieved when the water finds a path to the open air. In addition, the water has been naturally filtered because It passes through porous rock as it seeps into the Earth to reach the aquifer, which is the underground water source.
[9] The soil conservation method in which mountain slope is cut into step is –
A.
Contour ploughing
B.
Cover planting
C.
Strip cropping
D.
Terracing
Ans:
Terracing
Explanation :
In agriculture, a terist is a piece of sloped plane that has been landscaped into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping, therefore, is called terracing. Graduated terrace steps are commonly used to farm on hilly or mountainous terrain. Terraced fields decrease erosion and surface run off and are effective for growing crops requiring much water, such as rice.
[10] For the cultivation of Tobacco the soil should be rich in –
A.
calcareous matter
B.
nitrogen
C.
organic content
D.
potash
Ans:
potash
Explanation :
Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era.
[11] Evergreen rain forest is mainly found in regions having well distributed annual rainfall –
A.
Below 50 cm
B.
50-100 cm
C.
100-200 cm
D.
More than 200 cm
Ans:
More than 200 cm
Explanation :
Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C. They occupy about seven per cent of the Earth's land surface and harbour more than half of the world's plants and animals
[12] Mangrove forests occur in –
A.
high mountains
B.
snowy plains
C.
coastal swamps
D.
interior plateaus
Ans:
coastal swamps
Explanation :
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics - mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.
[13] In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called?
A.
shelter belts
B.
agroforests
C.
wind breaks
D.
social forests
Ans:
wind breaks
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
The continental shelf is the extended perimeter of each continent and associated coastal plain. Much of the shelf was exposed during glacial periods, but is now submerged under relatively shallow seas (known as shelf seas) and gulfs, and was almost similarly submerged during other interglacial periods. The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope followed by the flatter continental rise. Sediment from the continent above cascades down the slope and accumulates as a pile or seaiment at the base of the slope, called the continental rise.
[8] A special type of well in which water rises automatically under the pressure of a column of water to the ground surface through a hole is known as –
A.
Artisian well
B.
Spring
C.
Hot spring
D.
Geyser
Ans:
Artisian well
Explanation :
An artesian well is a pumpless water source that uses pipes to allow underground water that is under pressure to rise to the surface. This type of well seems to defy gravity because the pressure that builds up between layers of rock gets relieved when the water finds a path to the open air. In addition, the water has been naturally filtered because It passes through porous rock as it seeps into the Earth to reach the aquifer, which is the underground water source.
[9] The soil conservation method in which mountain slope is cut into step is –
A.
Contour ploughing
B.
Cover planting
C.
Strip cropping
D.
Terracing
Ans:
Terracing
Explanation :
In agriculture, a terist is a piece of sloped plane that has been landscaped into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping, therefore, is called terracing. Graduated terrace steps are commonly used to farm on hilly or mountainous terrain. Terraced fields decrease erosion and surface run off and are effective for growing crops requiring much water, such as rice.
[10] For the cultivation of Tobacco the soil should be rich in –
A.
calcareous matter
B.
nitrogen
C.
organic content
D.
potash
Ans:
potash
Explanation :
Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era.
[11] Evergreen rain forest is mainly found in regions having well distributed annual rainfall –
A.
Below 50 cm
B.
50-100 cm
C.
100-200 cm
D.
More than 200 cm
Ans:
More than 200 cm
Explanation :
Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C. They occupy about seven per cent of the Earth's land surface and harbour more than half of the world's plants and animals
[12] Mangrove forests occur in –
A.
high mountains
B.
snowy plains
C.
coastal swamps
D.
interior plateaus
Ans:
coastal swamps
Explanation :
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics - mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.
[13] In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called?
A.
shelter belts
B.
agroforests
C.
wind breaks
D.
social forests
Ans:
wind breaks
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
In agriculture, a terist is a piece of sloped plane that has been landscaped into a series of successively receding flat surfaces or platforms, which resemble steps, for the purposes of more effective farming. This type of landscaping, therefore, is called terracing. Graduated terrace steps are commonly used to farm on hilly or mountainous terrain. Terraced fields decrease erosion and surface run off and are effective for growing crops requiring much water, such as rice.
[10] For the cultivation of Tobacco the soil should be rich in –
A.
calcareous matter
B.
nitrogen
C.
organic content
D.
potash
Ans:
potash
Explanation :
Tobacco is a crop that needs significant amounts of potassium. It is a fast growing plant between 80 and 150 days, with a high daily potassium requirement. Potash is the common name for various mined and manufactured salts that contain potassium in water-soluble form. In some rare cases, potash can be formed with traces of organic materials such as plant remains, and this was the major historical source for it before the industrial era.
[11] Evergreen rain forest is mainly found in regions having well distributed annual rainfall –
A.
Below 50 cm
B.
50-100 cm
C.
100-200 cm
D.
More than 200 cm
Ans:
More than 200 cm
Explanation :
Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C. They occupy about seven per cent of the Earth's land surface and harbour more than half of the world's plants and animals
[12] Mangrove forests occur in –
A.
high mountains
B.
snowy plains
C.
coastal swamps
D.
interior plateaus
Ans:
coastal swamps
Explanation :
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics - mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.
[13] In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called?
A.
shelter belts
B.
agroforests
C.
wind breaks
D.
social forests
Ans:
wind breaks
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
Tropical evergreen forests are usually found in areas receiving more than 200 cm of rainfall and having a temperature of 15 °C to 30 °C. They occupy about seven per cent of the Earth's land surface and harbour more than half of the world's plants and animals
[12] Mangrove forests occur in –
A.
high mountains
B.
snowy plains
C.
coastal swamps
D.
interior plateaus
Ans:
coastal swamps
Explanation :
Mangroves are various kinds of trees up to medium height and shrubs that grow in saline coastal sediment habitats in the tropics and subtropics - mainly between latitudes 25° N and 25° S. There are about 80 different species of mangrove trees. All of these trees grow in areas with low-oxygen soil, where slow-moving waters allow fine sediments to accumulate.
[13] In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called?
A.
shelter belts
B.
agroforests
C.
wind breaks
D.
social forests
Ans:
wind breaks
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduced the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
[14] Spot the odd item in the following :
A.
Basalt
B.
Ruby
C.
Emerald
D.
Sapphire
Ans:
Basalt
Explanation :
Emerald, together with ruby and sapphire, form the "big three" of colored stones or gems which are all metamorphic in nature. Basalt is an igneous rock.
[15] Which of the following is an organic rock?
A.
Marble
B.
Coal
C.
Granite
D.
Slate
Ans:
Coal
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
Coal is an organic sedimentary rock that forms mainly from plant debris. The plant debris usually accumulates in a swamp environment.
[16] The rapid sliding of large masses of bed rocks is called :
A.
Landslide
B.
Earthquake
C.
Weathering
D.
Mass wasting
Ans:
Landslide
Explanation :
The rapid sliding of large masses of bed rocks is called Landslide.
[17] Which type of lake is formed by volcanic activities?
A.
Caldera lake
B.
Karst lake
C.
Lagoon
D.
Fresh water lake
Ans:
Caldera lake
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
Caldera refers to a large basin-shaped Crater that is bound by steep cliffs. The Caldera best known in North America is Crater Lake.
[18] Natural embankments found on upper valley sides are-known as –
A.
high banks
B.
levees
C.
bunds
D.
ridge
Ans:
levees
Explanation :
A levee is an elongated naturally occurring ridge or artificially constructed fill or wall, which regulates water levels. It is usually earthen and often parallel to the course of a river in its floodplain or along low lying coastlines.
[19] River erosion is at its greatest where river's –
A.
depth is more
B.
breadth is more
C.
flow is fast
D.
gradient is more
Ans:
flow is fast
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
The outer bank (called a cut bank) has the greatest erosion because the water is flowing faster along the outer bank than the inner bank. The slower water allows sediment to be deposited (called a point bar).
[20] In which of the following is the Great Barrier Reef located?
A.
Coral Sea
B.
Solomon Sea
C.
Bismarck Sea
D.
Arafura Sea
Ans:
Coral Sea
Explanation :
The Great Barrier Reef is in the Coral Sea, on Australia's north-eastern coast. It stretches more than 2,300 km along the state of Queensland's coastline, beginning at the tip of Cape York Peninsula in the north and extending down to Bundaberg in the south. The Great Barrier Reef is ideal for Cairns Scuba Diving.
[21] Atmospheric temperature increasing at the higher altitudes is called –
A.
Radiation
B.
Inversion
C.
Conduction
D.
Convection
Ans:
Inversion
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
The reversal of the normal behaviour of temperature in the troposphere in which a layer of cool air at the surface is overlain by a layer of warmer air is known as temperature inversion. Inversions play an important role in determining cloud forms, precipitation, and visibility.
[22] Which of the following reasons is responsible for lack of vegetation in the deserts?
A.
Heavy volume of sands
B.
Absence of B-horizon in the soil
C.
High temperature
D.
Lack of rainfall
Ans:
Lack of rainfall
Explanation :
A desert is a barren area of land where little precipitation occurs arid consequently living conditions arc hostile for plant and animal life. Lack of or insufficient precipitation is the main reason behind the lack of vegetation.
[23] Which of the following winds is called anti-trade wind?
A.
Chinook
B.
Cyclone
C.
Typhoon
D.
Westerlies
Ans:
Chinook
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
Westerlies are rather stormy and variable though the main direction remains from west to east. But as their general direction is from the west, they are called the "Westerlies". They are also known as "Anti - Trade Winds", because their movement is in the opposite direction from that of the trade wind.
[24] The solar radiation coming to Earth is called –
A.
Radiant energy
B.
Insolation
C.
Sunshine
D.
Terrestrial radiation
Ans:
Insolation
Explanation :
Insolation is the solar radiation that reaches the earth's surface. It is measured by the amount of solar energy received per square centimetre per minute. Insolation affects temperature. The more the insolation, the higher the temperature. In any given day, the strongest insolation is received at noon. The insolation into a surface is largest when the surface directly faces the Sun. As the angle increases between the direction at a right angle to the surface and the direction of the rays of sunlight, the insolation is reduced in proportion to the cosine of the angle.
[25] The rhythmic rise and fall of ocean water twice in a day called –
A.
Tide
B.
Ocean current
C.
Wave
D.
Water cycle
Ans:
Tide
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.
Explanation :
The rhythmic rise and fall of ocean water twice in a day is called a tide. The tides are caused due to strong gravitational pull exerted by the sun and the moon on the earth's surface.