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Free download PDF of CSAT prelims general awareness multiple choice questions(MCQs) and answers on Ecology and Biodiversity. These previous years solved questions include mcqs on Earth Hour, ozone-depleting substances etc.
31
The formation of ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?
A
Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons.
B
Increased temperature at polar region due to global warming.
C
Presence of prominent tropo- spheric turbulence; and inflow of chlorofluorocarbons.
D
Present of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons.
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32
Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?
A
Ecotone
B
Habitat
C
Ecological niche
D
Home range
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33
With reference to Bombay Natural History Society(BNHS), consider the following statements:
I. It is an autonomous organization under the ministry of Environment and Forests.
II. It organizes and conducts nature trail and camps for the general public.
III. It strives to conserve nature through action- based research, education and public awareness.
Which of the statements given above is/ are correct?
A
I and III only
B
II only
C
II and III only
D
I, II and III
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34
Consider the following:
I. Bats
II. Bears
III. Rodents
The phenomenon hibernation can be observed in which of the above kinds of animals?
A
I and II only
B
II only
C
I, II and III
D
Hibernation cannot be observed in any of the above
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35
With reference to ‘dugong’, a mammal found in India, which of the following statements is/ an; correct?
I. It is a herbivorous marine animal
II. It is found along the entire coast of India.
III. It is given legal protection under Schedule I of the Wildlife (Protection) Act, 1972.
Select of the correct answer using the code given below.
A
I and II only
B
II only
C
II and III only
D
I and III only
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36
Consider the following statements:
I. National Tiger Conservation Authorities is a statutory body.
II. National Ganga River Basin Authority is chaired by the Prime Minister.
III. Animal Welfare Board of India is established under the Environment (Protection) Act, 1986.
Which of the statements given above is/ are correct?
A
I and II only
B
II and III only
C
I and III only
D
I, II and III
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37
Consider the following fauna of India:
I. Swamp deer
II. Gharial
III. Leatherback turtle
Which of the above is/are endangered?
A
I and II only
B
II only
C
I, II and III
D
None of these
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38
Which one of the following is associated with the issue of control and phasing out of the use of ozone-depleting substances?
A
Nagoya Protocol
B
Kyoto Protocol
C
Montreal Protocol
D
Breetton Woods Conference
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39
Consider the following statements regarding ‘Earth Hour’:
I. It is an initiative of UNEP and UNESCO.
II. It is a movement to raise the awareness about the climate change and the need to save the planet.
III. It is a movement in which the participants switch off the lights for one hour on a certain day every year.
Which of the statements given above is/are correct?
A
I, II and III
B
I and II only
C
I and III only
D
II and III only
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40
Consider the following agricultural practices:
I. Zero tillage
II. Relay cropping
III. Contour bunding
In the context of global climate change, which of the above helps/ help in carbon sequestration/ storage in the soil?
A
I and II only
B
III only
C
I, II and III
D
None of them
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