- 1(current)
Q. No.Consider the given two statements:
| Assertion (A): | Niche specialisation has been more prominent in tropics when compared to subtropics. |
| Reason (R): | There is more solar energy available in tropics |
| 1. | Both (A) and (R) are True and (R) correctly explains the (A) |
| 2. | Both (A) and (R) are True but (R) does not correctly explain the (A) |
| 3. | (A) is False, (R) is False |
| 4. | (A) is False, (R) is True |
Subtopic: Loss of Biodiversity |
Please attempt this question first.
Hints
The Amazon Forest:
| I: | is a largely tropical rainforest in South Africa |
| II: | has the greatest biodiversity on Earth |
| III: | produces about 20% of total oxygen in the earth’s atmosphere through photosynthesis |
| 1. | Only I and II are correct |
| 2. | Only I and III are correct |
| 3. | Only II and III are correct |
| 4. | I, II and III are correct |
Subtopic: Biodiversity Patterns | Importance of Biodiversity | Loss of Biodiversity |
57%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Assertion (A): | The IUCN Red List is a critical indicator of the health of the world’s biodiversity. |
| Reason (R): | Major updates to the Red List dataset are usually published approximately every four years. |
| 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: Loss of Biodiversity |
Please attempt this question first.
Hints
Colonisation of tropical Pacific Islands by humans have resulted in extinction of more than _____ 3 pecies of native birds.
1. 2000
2. 7000
3. 784
4. 15000
1. 2000
2. 7000
3. 784
4. 15000
Subtopic: Loss of Biodiversity |
59%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
| Assertion (A): | When certain exotic species are introduced into a geographical area, they become invasive and start spreading fast. |
| Reason (R): | These exotic species invariably reproduce by asexual means. |
| 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 True, (R) is False |
| 4. | (A) is False, (R) is False |
Subtopic: Loss of Biodiversity |
60%
Please attempt this question first.
Hints
Consider the given two statements:
| Statement I: | That humans derive countless direct economic benefits from nature is the broadly utilitarian argument for the need to conserve biodiversity. |
| Statement II: | That biodiversity plays a major role in many ecosystem services that nature provides is the narrowly utilitarian argument for the need to conserve biodiversity. |
| 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 incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Loss of Biodiversity |
58%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
How many of the given statements are true?
1. 1
2. 2
3. 3
4. 0
| I: | Amazon rain forest produces 20% of total oxygen in the Earth’s atmosphere |
| II: | All the biodiversity hotspots put together cover about 10 % of the Earth’s land area |
| III: | About 23 % of all species of gymnosperms in the world face the threat of extinction |
| IV: | India’s share of the global species diversity is about 2.4 % |
2. 2
3. 3
4. 0
Subtopic: Loss of Biodiversity |
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the following statements regarding invasive species:
Choose the correct option:
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Neither Statement I nor Statement II is correct.
| Statement I: | The introduction of the Nile perch into Lake Victoria led to the extinction of several indigenous cichlid fish species. |
| Statement II: | All introduced species in a native ecosystem will become invasive. |
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Neither Statement I nor Statement II is correct.
Subtopic: Loss of Biodiversity |
57%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.