A sandy and saline area is the natural habitat of an Indian animal species. The animal has no predators in that area but its existence is threatened due to the destruction of its habitat. Which one of the following could be that animal?
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A sandy and saline area is the natural habitat of an Indian animal species. The animal has no predators in that area but its existence is threatened due to the destruction of its habitat. Which one of the following could be that animal?
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With reference to India, consider the following Central Acts:
1. Import and Export(Control) Act, 1947
2. Mining and Mineral development(Regulation) Act, 1957
3. Customs Act, 1962
4. Indian Forest Act, 1927
Which of the above Acts have relevance to/bearing on the biodiversity conservation in the country?
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Regarding “carbon credits”, which one of the following statements is not correct?
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The formation of ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?
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Consider the following:
1. Carbon dioxide
2. Oxides of Nitrogen
3. Oxides of Sulphur
Which of the above is/are the emission/emissions from coal combustion at thermal power plants?
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Human activities in the recent past have caused the increased concentration of carbon dioxide in the atmosphere, but a lot of it does not remain in the lower atmosphere because of
1. Its escape into the outer stratosphere.
2. The photosynthesis by phytoplankton in the oceans.
3. The trapping of air in the polar ice caps.
Which of the statements given above is/are correct?
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There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon?
1. Discharge of nutrients from the estuaries.
2. Run-off from the land during the monsoon.
3. Upwelling in the seas.
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With reference to micro-irrigation, which of the following statements is/are correct?
1. Fertilizer/nutrient loss can be reduced.
2. It is the only means of irrigation in dryland farming.
3. In some areas of farming, the receding of groundwater tables can be checked.
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The Himalayan Range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?
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Biodiversity forms the basis for human existence in the following ways:
1. Soil formation
2. Prevention of soil erosion
3. Recycling of waste
4. Pollination of crops
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Consider the following statements:
1. Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes.
2. Along the mountain gradients, biodiversity is normally greater in the lower altitudes as compared to the higher altitudes.
Which of the statements given above is/are correct?
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Three of the following criteria have contributed to the recognition of Western Ghats-Sri Lanka and Indo-Burma regions as hotspots of biodiversity:
1. Species richness
2. Vegetation density
3. Endemism
4. Ethno-botanical importance
5. Threat perception
6. Adaptation of flora and fauna to warm and humid conditions
Which three of the above are correct criteria in this context?
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Which one of the following is not a site for the in-situ method of conservation of flora?
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The “Red Data Books” published by the International Union for Conservation of Nature and Natural Resource (IUCN) contain lists of
1. Endemic plant and animal species present in the biodiversity hotspots.
2. Threatened plant and animal species.
3. Protected sites for conservation of nature and natural resources in various countries.
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If a tropical rainforest is removed, it does not regenerate quickly as compared to a tropical deciduous forest. This is because
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In the context of ecosystem productivity, marine upwelling zones are important as they increase marine productivity by bringing the:
1. Decomposer microorganisms to the surface.
2. Nutrients to the surface.
3. Bottom-dwelling organisms to the surface.
Which of the statements given above is/are correct?
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