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Q. No."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
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%
From NCERT
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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%
From NCERT
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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%
From NCERT
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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%
From NCERT
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Consider the given two statements:
| Assertion (A): | Ex situ conservation is better for conserving organisms facing high threats of extinction. |
| Reason (R): | Ex situ conservation allows for controlled breeding and management away from natural predators and competitors. |
| 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: Ex Situ Conservation of Biodiversity |
86%
From NCERT
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The difference between ex situ and in situ conservation of biodiversity is:
| 1. | Ex situ conservation involves protecting an entire ecosystem, whereas in situ conservation focuses on the conservation of individual species outside their natural habitats |
| 2. | In situ conservation is less effective than ex situ conservation for endangered species |
| 3. | Ex situ conservation is only applicable to plants, whereas in situ conservation is only applicable to animals |
| 4. | In situ conservation involves protecting an entire ecosystem and its biodiversity at its natural site, whereas ex situ conservation involves protecting parts of the ecosystem or species outside their natural habitats |
Subtopic: Biodiversity Conservation |
93%
From NCERT
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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%
From NCERT
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Consider the given two statements:
| Assertion (A): | Tropics have a higher biodiversity than temperate regions in general. |
| Reason (R): | Tropics have undergone frequent glaciations compared to temperate regions during the earth history. |
| 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: Biodiversity Patterns |
82%
From NCERT
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After angiosperms, which of the flowing plant groups shows maximum biodiversity?
1. Cycads
2. Algae
3. Mosses
4. Ferns and allies
1. Cycads
2. Algae
3. Mosses
4. Ferns and allies
Subtopic: Magnitude of Biodiversity |
76%
From NCERT
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