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Q. No.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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A scientifically sound estimate made by Robert May places the global biodiversity at about:
| 1. | 2.1 million | 2. | 7 million |
| 3. | 15 million | 4. | 50 million |
Subtopic: Magnitude of Biodiversity |
95%
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Which of the following is not included in hot spots of biodiversity including India?
1. Western Ghats
2. Eastern Himalayas
3. Indo Burma
4. Ganga Yamuna Doab
1. Western Ghats
2. Eastern Himalayas
3. Indo Burma
4. Ganga Yamuna Doab
Subtopic: In Situ Conservation of Biodiversity |
89%
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"Biodiversity should be conserved as it plays a major role in many ecosystem services that nature provides." This argument in favour of conserving biodiversity is:
1. ethical
2. useless
3. narrowly utilitarian
4. broadly utilitarian
1. ethical
2. useless
3. narrowly utilitarian
4. broadly utilitarian
Subtopic: Biodiversity Conservation |
65%
From NCERT
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What percentage of all species on earth might be wiped out within the next 100 years if the present trends in 6th mass extinction were to continue?
1. 10
2. 25
3. 50
4. 90
1. 10
2. 25
3. 50
4. 90
Subtopic: Loss of Biodiversity |
72%
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The Conference of Parties (COP) 2024 will be held in:
1. Glasgow, United Kingdom
2. Sharm el Sheikh, Egypt
3. Dubai, UAE
4. Baku, Azerbaijan
1. Glasgow, United Kingdom
2. Sharm el Sheikh, Egypt
3. Dubai, UAE
4. Baku, Azerbaijan
Subtopic: Biodiversity Conservation |
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| 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%
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Biodiversity typically increases when moving from:
1. High altitude to low altitude.
2. Polar regions towards the equator.
3. Wet climates to dry climates.
4. High population areas to low population areas.
1. High altitude to low altitude.
2. Polar regions towards the equator.
3. Wet climates to dry climates.
4. High population areas to low population areas.
Subtopic: Biodiversity Patterns |
89%
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The current mass extinction is characterized by:
| 1. | The natural extinction of species as a result of environmental changes over millions of years. |
| 2. | The rapid loss of species in a relatively short period, primarily due to human activities. |
| 3. | A decrease in biodiversity due to the natural evolution of species. |
| 4. | The migration of species from their native habitats to new areas, leading to a decrease in local biodiversity. |
Subtopic: Loss of Biodiversity |
95%
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Consider the given two statements:
| Assertion (A): | A region is designated as a biodiversity hotspot if it has rich species diversity and high degree of endemism. |
| Reason (R): | Biodiversity hotspots are areas with high biodiversity that are under no threat from human activities. |
| 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: In Situ Conservation of Biodiversity |
61%
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