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Q. No.
Assertion(A): It is not easy to tell the exact number of species recorded on Earth.
Reason(R): There are published records of all the species discovered and named.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Introduction & Types |
From NCERT
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Assertion(A): The conservation of biodiversity is a collective responsibility of all nations.
Reason(R): Biodiversity knows no political boundaries.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Reason(R): Biodiversity knows no political boundaries.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
Subtopic: Biodiversity Conservation |
78%
From NCERT
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Assertion (A): There are three different zones in a biosphere reserve.
Reason (R): Limited human activity is allowed in core zone.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Reason (R): Limited human activity is allowed in core zone.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. Both (A) and (R) are false.
Subtopic: Ex Situ Conservation of Biodiversity |
57%
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A more conservative and scientifically sound estimate made by Robert May places the global species diversity at about:
1. 1.8 million
2. 7 million
3. 22.22 million
4. 50 million
1. 1.8 million
2. 7 million
3. 22.22 million
4. 50 million
Subtopic: Magnitude of Biodiversity | Biodiversity Patterns |
90%
From NCERT
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Biodiversity hotspots are characterised by all the following features except:
| 1. | Presence of a large number of species |
| 2. | High degree of endemism |
| 3. | Mostly located in the tropical region |
| 4. | No threat of extinction of any species |
Subtopic: In Situ Conservation of Biodiversity |
82%
From NCERT
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Consider the two statements:
| Statement I: | In general, species diversity increases as we move away from the equator towards the poles. |
| Statement II: | With very few exceptions, tropics harbour more species than temperate or polar areas. |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Biodiversity Patterns |
80%
From NCERT
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Biodiversity hotspots are not characterised by:
| 1. | Having a large number of species |
| 2. | Abundance of endemic species |
| 3. | Being mostly located in the tropics |
| 4. | Being mostly located in the polar regions |
Subtopic: In Situ Conservation of Biodiversity |
81%
From NCERT
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The sobriquet "Lungs of the planet Earth” is used for:
| 1. | Western Ghats in India |
| 2. | Alpine tundra |
| 3. | Amazon rainforest |
| 4. | Khasi and Jaintia Hills |
Subtopic: Loss of Biodiversity |
96%
From NCERT
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Consider the two statements:
| Assertion (A): | Removal of a keystone species from a community affects community structure significantly. |
| Reason (R): | Keystone species are always the apex predators in an ecosystem. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Loss of Biodiversity |
55%
From NCERT
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All the following are ‘ex-situ’ methods for conservation of biodiversity except:
1. Zoological parks
2. Botanical gardens
3. Wildlife safari parks
4. National parks
1. Zoological parks
2. Botanical gardens
3. Wildlife safari parks
4. National parks
Subtopic: In Situ Conservation of Biodiversity | Ex Situ Conservation of Biodiversity |
80%
From NCERT
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