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Q. No.The consequences of loss of biodiversity is least likely to result in:
1. decline in primary production
2. increased resistance to environmental perturbance
3. increased variability in water use
4. increased variability in pest and disease cycle
Subtopic: Loss of Biodiversity |
61%
From NCERT
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Maximum global diversity amongst the following is exhibited by:
| 1. | Mollusks | 2. | Echinoderms |
| 3. | Annelids | 4. | Crustaceans |
Subtopic: Magnitude of Biodiversity |
69%
From NCERT
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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%
From NCERT
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An overwhelmingly large proportion of the species waiting to be discovered are in the:
1. tropics
2. sub-tropical areas
3. temperate areas
4. polar areas
1. tropics
2. sub-tropical areas
3. temperate areas
4. polar areas
Subtopic: Biodiversity Patterns |
86%
From NCERT
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The pie chart shows the magnitude of biodiversity in vertebrate taxa. Fishes are represented by the alphabet:
| 1. | A | 2. | C |
| 3. | D | 4. | B or E |
Subtopic: Magnitude of Biodiversity |
89%
From NCERT
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The number of mega-diversity countries in the world are [choose the NCERT number as your answer]:
| 1. | 4 | 2. | 8 |
| 3. | 12 | 4. | 17 |
Subtopic: Magnitude of Biodiversity |
92%
From NCERT
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The largest extinct carnivore marsupial, thylacine, was a native of:
1. Brazil
2. South Africa
3. Peru
4. Australia
1. Brazil
2. South Africa
3. Peru
4. Australia
Subtopic: Loss of Biodiversity |
87%
From NCERT
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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%
From NCERT
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How many episodes of mass extinction of species have occurred before the current ongoing episode?
1. 3
2. 4
3. 5
6. 6
1. 3
2. 4
3. 5
6. 6
Subtopic: Loss of Biodiversity |
85%
From NCERT
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Which of the following approaches to conserve biodiversity is not an ex-situ approach?
1. Zoological parks and botanical gardens
2. Wildlife safari parks
3. Biosphere reserves
4. Seed banks
1. Zoological parks and botanical gardens
2. Wildlife safari parks
3. Biosphere reserves
4. Seed banks
Subtopic: In Situ Conservation of Biodiversity | Ex Situ Conservation of Biodiversity |
88%
From NCERT
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