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Q. No.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 |
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| Assertion (A): | Tilman found that plots with more species showed less year-to-year variation in total biomass |
| Reason (R): | He showed in his experiment that increased diversity contributed to higher productivity. |
| 1. | Both (A) and (R) are True and the (R) is the correct explanation of the (A). |
| 2. | Both (A) and (R) are True and the (R) is not the correct explanation of the (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Importance of Biodiversity |
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| Assertion (A): | Paul Ehrlich explained the essentiality· of biodiversity for ecosystem health. |
| Reason (R): | According to Paul Ehrlich, airplane and rivets are analogy to ecosystem and species respectively |
| 1. | Both (A) and (R) are True and the (R) is the correct explanation of the (A). |
| 2. | Both (A) and (R) are True and the (R) is not the correct explanation of the (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Importance of Biodiversity |
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| Assertion (A): | A forest in a tropical region like equador has upto 10 times as many species of vascular plants as . a forest of equal area in a temperate region like the midwest of USA. |
| Reason (R): | Tropical environment unlike temperate ones, are less seasonal, relatively more constant and predictable. |
| 1. | (A) is True but (R) is False |
| 2. | (A) is False but (R) is True |
| 3. | Both (A) and (R) are True and (R) is correct explanation of (A) |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A) |
Subtopic: Biodiversity Patterns |
58%
From NCERT
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Loss of biodiversity in a region may lead to
| a. | Increased variability in certain ecosystem processes. |
| b. | Lowered resistance to environmental perturbations. |
| c. | Decline in productivity. |
1. Only a is correct
2. Only a is incorrect
3. Only b and c
4. Both a and b are incorrect
2. Only a is incorrect
3. Only b and c
4. Both a and b are incorrect
Subtopic: Loss of Biodiversity |
From NCERT
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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%
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Study the following pie chart w.r.t. global diversity of plants and select the correct option.
| A | B | C | D | E | F | |
| 1. | Anagios - perms |
Lichens |
Algae |
Fungi |
Mosses |
Ferns and allies |
| 2. | Fungi |
Lichens |
Algae |
Angios- perms |
Mosse |
Ferns and allies |
| 3. | Fungi |
Mosses |
Ferns and allies
|
Angios - perms |
Lichens |
Algae |
| 4. | Angios - perms |
Ferns and allies |
Lichens |
Fungi |
Algae |
Mosses |
Subtopic: Introduction & Types |
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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
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According to the ‘India State of Forest Report (ISFR)’ 2021, which state has the largest area-wise forest cover in the country?
1. Arunachal Pradesh
2. Chhattisgarh
3. Madhya Pradesh
4. Maharashtra
1. Arunachal Pradesh
2. Chhattisgarh
3. Madhya Pradesh
4. Maharashtra
Subtopic: Biodiversity Patterns |
61%
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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
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