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Q. No.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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Consider the two statements:
| Assertion (A): | The ‘Sixth Extinction’ presently in progress is different from the previous episodes of species extinction. |
| Reason (R): | The current species extinction rates are estimated to be 100 to 1,000 times faster than in the pre-human times |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is False but (R) is True. |
| 4. | (A) is True but (R) is False. |
Subtopic: Loss of Biodiversity |
86%
From NCERT
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Consider the given two statements:
| Statement I: | The broadly utilitarian argument for conserving biodiversity says that humans derive countless direct economic benefits from nature. |
| Statement II: | The ethical argument for conserving biodiversity says that biodiversity plays a major role in many ecosystem services that nature provides. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Biodiversity Conservation |
From NCERT
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Consider the given two statements:
| Statement I: | More than 25% of the drugs currently sold in the market worldwide are derived from plants. |
| Statement II: | Amazon forest is estimated to produce, through photosynthesis 5 % of the total oxygen in the earth’s atmosphere. |
| 1. | Statement I is incorrect; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is correct; Statement II is correct |
Subtopic: Biodiversity Conservation |
86%
From NCERT
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What will be true for proportionate number of species representing global biodiversity?
| 1. | The number of lichens is much more than the number of algae |
| 2. | The number of mosses is much less than the number of ferns and allies |
| 3. | The number of angiosperms is equal to the number of gymnosperms |
| 4. | The number of fungi is much more than the number of algae, ferns and allies, mosses and lichens put together |
Subtopic: Magnitude of Biodiversity |
90%
From NCERT
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