MCQs
Total Questions : 60
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Answer: Option A. -> More than 200 cm
Answer: (a)
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.
Answer: (a)
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.
Answer: Option C. -> Maximum biodiversity
Answer: (c)
Tropical rainforests exhibit high levels of biodiversity. Around 40% to 75% of all biotic species are indigenous to the rainforests.
Rainforests are home to half of all the living animal and plant species on the planet. Two-thirds of all flowering plants can be found in rainforests.
Answer: (c)
Tropical rainforests exhibit high levels of biodiversity. Around 40% to 75% of all biotic species are indigenous to the rainforests.
Rainforests are home to half of all the living animal and plant species on the planet. Two-thirds of all flowering plants can be found in rainforests.
Answer: Option D. -> El Nino
Answer: (d)
El Niño is an irregularly periodical variation in winds and sea surface temperatures over the tropical eastern Pacific Ocean.
Scientists have found an association between El Nino and global warming since El Nino events cause short-term spikes in global average surface temperature.
For example, an increase in the frequency and magnitude of El Niño events have triggered warmer than usual temperatures over the Indian Ocean.5
Answer: (d)
El Niño is an irregularly periodical variation in winds and sea surface temperatures over the tropical eastern Pacific Ocean.
Scientists have found an association between El Nino and global warming since El Nino events cause short-term spikes in global average surface temperature.
For example, an increase in the frequency and magnitude of El Niño events have triggered warmer than usual temperatures over the Indian Ocean.5
Answer: Option D. -> Zone of soil, water and air around earth capable of supporting the flora and fauna.
Answer: (d)Biosphere refers to that portion of the Earth which is occupied by the various forms of life, in addition to the three main physical zones, the Lithosphere, the Hydrosphere and the Atmosphere.
Answer: (d)Biosphere refers to that portion of the Earth which is occupied by the various forms of life, in addition to the three main physical zones, the Lithosphere, the Hydrosphere and the Atmosphere.
Answer: Option C. -> Mangrove forest
Answer: (c)Tidal forest is also called Mangrove forest.
Answer: (c)Tidal forest is also called Mangrove forest.
Answer: Option A. -> All of the above
Answer: (a)
Projections of future climate change suggest further global warming, sea-level rise, and an increase in the frequency and severity of some extreme weather events. Over the next several millennia, even if emissions were drastically reduced, global temperatures would remain close to their highest level for at least 1,000 years.
The coast will suffer severe impacts from sea-level rise.
Answer: (a)
Projections of future climate change suggest further global warming, sea-level rise, and an increase in the frequency and severity of some extreme weather events. Over the next several millennia, even if emissions were drastically reduced, global temperatures would remain close to their highest level for at least 1,000 years.
The coast will suffer severe impacts from sea-level rise.
Answer: Option D. -> increase in the content of carbon dioxide in the atmosphere
Answer: (d)
Our ever-increasing addiction to electricity from coal-burning power plants releases enormous amounts of carbon dioxide into the atmosphere. 40% of U.S. CO2 emissions come from electricity production, and burning coal accounts for 93% of emissions from the electric utility industry.
Every day, more electric gadgets flood the market, and without widespread alternative energy sources, we are highly dependent on burning coal for our personal and commercial electrical supply.
Answer: (d)
Our ever-increasing addiction to electricity from coal-burning power plants releases enormous amounts of carbon dioxide into the atmosphere. 40% of U.S. CO2 emissions come from electricity production, and burning coal accounts for 93% of emissions from the electric utility industry.
Every day, more electric gadgets flood the market, and without widespread alternative energy sources, we are highly dependent on burning coal for our personal and commercial electrical supply.
Answer: Option D. -> Biome
Answer: (d)
Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms, and are often referred to as ecosystems. Some parts of the earth have more or less the same kind of abiotic and biotic factors spread over a large area, creating a typical ecosystem over that area.
Such major ecosystems are termed biomes. Biomes are defined by factors such as plant structures (such as trees, shrubs, and grasses), leaf types (such as broadleaf and needleleaf), plant spacing (forest, woodland, savanna), and climate. Major biomes include deserts, forests, grasslands, tundra, and several types of aquatic environments. Each biome consists of many ecosystems whose communities have adapted to the small differences in climate and the environment inside the biome.
Answer: (d)
Biomes are climatically and geographically defined as similar climatic conditions on the Earth, such as communities of plants, animals, and soil organisms, and are often referred to as ecosystems. Some parts of the earth have more or less the same kind of abiotic and biotic factors spread over a large area, creating a typical ecosystem over that area.
Such major ecosystems are termed biomes. Biomes are defined by factors such as plant structures (such as trees, shrubs, and grasses), leaf types (such as broadleaf and needleleaf), plant spacing (forest, woodland, savanna), and climate. Major biomes include deserts, forests, grasslands, tundra, and several types of aquatic environments. Each biome consists of many ecosystems whose communities have adapted to the small differences in climate and the environment inside the biome.
Answer: Option B. -> Biosphere
Answer: (b)The biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere. It is termed the zone of life on Earth.
Answer: (b)The biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere. It is termed the zone of life on Earth.
Answer: Option D. -> Cyclones
Answer: (d)
During summer, the Bay of Bengal is subject to intense heating, giving rise to humid and unstable air masses that produce cyclones. Widespread death and property destruction are reported every year in exposed coastal states such as Andhra Pradesh and Odisha.
Although cyclones affect the entire coast of India, the East Coast is more prone compared to the West Coast. Out of the cyclones that develop in the Bay of Bengal, over 58 per cent approach and cross the east coast in October and November.
Only 25 per cent of the cyclones that develop over the Arabian Sea approach the west coast. In the pre-monsoon season, corresponding figures are 25 per cent over the Arabian Sea and 30 per cent over the Bay of Bengal.
Answer: (d)
During summer, the Bay of Bengal is subject to intense heating, giving rise to humid and unstable air masses that produce cyclones. Widespread death and property destruction are reported every year in exposed coastal states such as Andhra Pradesh and Odisha.
Although cyclones affect the entire coast of India, the East Coast is more prone compared to the West Coast. Out of the cyclones that develop in the Bay of Bengal, over 58 per cent approach and cross the east coast in October and November.
Only 25 per cent of the cyclones that develop over the Arabian Sea approach the west coast. In the pre-monsoon season, corresponding figures are 25 per cent over the Arabian Sea and 30 per cent over the Bay of Bengal.
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