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Q. No.Maximum global diversity amongst the following is exhibited by:
| 1. | Mollusks | 2. | Echinoderms |
| 3. | Annelids | 4. | Crustaceans |
Subtopic: Magnitude of Biodiversity |
69%
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Consider three sample areas with the following composition:
| Sample area I: | has three species of birds, two are represented by one individual each and the third by four individuals |
| Sample area II: | has three species of birds, each represented by two individuals |
| Sample area III: | has a species of insects, a species of mammals and a species of birds, each with two individuals |
Which area will be considered as the most diverse?
1. Sample area I
2. Sample area II
3. Sample area III
4. Sample area II and Sample area III are equally diverse
Subtopic: Biodiversity Conservation |
86%
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On a logarithmic scale, the species-area relationship is a:
| 1. | straight line | 2. | rectangular hyperbola |
| 3. | parabola | 4. | concave up curve |
Subtopic: Biodiversity Patterns |
68%
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Subtopic: Loss of Biodiversity |
88%
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In contemporary times, which of the following is the major reason that is driving species to extinction?
1. Habitat loss and fragmentation
2. Alien species invasion
3. Overexploitation
4. Co-extinction
1. Habitat loss and fragmentation
2. Alien species invasion
3. Overexploitation
4. Co-extinction
Subtopic: Loss of Biodiversity |
88%
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Year-to-year variation shown by areas with more species is ................... with respect to areas with less species.
| 1. | less | 2. | more |
| 3. | same | 4. | absent |
Subtopic: Importance of Biodiversity |
69%
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Consider the given three statements:
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
| I: | The current mass extinction of species is the ‘Sixth Extinction’. |
| II: | The current species extinction rates are estimated to be 100 to 1,000 times faster than in the pre-human times. |
| III: | Our activities are responsible for the faster rates. |
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: Loss of Biodiversity |
92%
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What percentage of world oxygen is thought to be created by Amazonian Rain Forests?
1. 10
2. 20
3. 50
4. 90
1. 10
2. 20
3. 50
4. 90
Subtopic: Biodiversity Conservation |
89%
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The ‘Earth Summit’ was held in:
| 1. | Ramsar, Iran | 2. | Rio, Brazil |
| 3. | Doha, Qatar | 4. | Geneva, Switzerland |
Subtopic: Biodiversity Conservation |
95%
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The ‘World Summit on Sustainable Development -2022’ was held in:
1. Ramsar, Iran
2. Rio, Brazil
3. Johannesburg, South Africa
4. Geneva, Switzerland
1. Ramsar, Iran
2. Rio, Brazil
3. Johannesburg, South Africa
4. Geneva, Switzerland
Subtopic: Biodiversity Conservation |
79%
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