Q. No.Modern catalytic converters in automobiles are capable of:
I:
Oxidation of carbon, hydrocarbons, and carbon monoxide to carbon dioxide
II:
Oxidation of nitrogen oxides to nitrogen (N2)
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
2. Only II
3. Both I and II
4. Neither I nor II
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Provided it is carried out in an environmentally friendly manner, the only solution for the treatment of e-waste is:
1. Recycling
2. Incineration
3. Sanitary landfills
4. Burying deep in earth
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Water [Prevention and Control of Pollution] Act was passed by the Government of India in:
| 1. | 1974 | 2. | 1981 |
| 3. | 1987 | 4. | 1992 |
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Apart from DDT, what else is known to undergo biological magnification in aquatic food chain?
| 1. | Nitrates | 2. | Phosphates |
| 3. | Mercury | 4. | Calcium |
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Burying radioactive wastes is not acceptable to many people as:
1. there is a risk of groundwater contamination
2. it may explode
3. it will harm the buried dead bodies
4. it may get accumulated in vegetations
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In India, the name Ramesh Chandra Dagar, is associated with:
1. Organic farming
2. Conservation of forests
3. Recycling of plastic wastes
4. Preservation of water lands
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If there was no green house effect:
| 1. | Earth would have been too cold for many organisms to survive |
| 2. | The diversity on Earth would have been much higher |
| 3. | The primary productivity would have been much higher |
| 4. | Earth would not have any atmosphere |
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| A | Desertification | A type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly arid. |
| B | Soil erosion | A form of soil degradation, it is the denudation of the fertile top layer of the soil. |
| C | Water-logging | It is the saturation of soil with water where the soil is nearly saturated with water much of the time such that its air phase is restricted and anaerobic conditions prevail. |
| D | Soil Salinity | It is the salt content in the soil; the process of increasing the salt content is known as salinization. |
2. Only C and D
3. Only B and D
4. A, B, C and D
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| Assertion (A): | Irrigation without proper drainage of water has a very detrimental effect on crops. |
| Reason (R): | It draws salt to the surface of the soil which is inimical to the growth of crops. |
| 1. | Both (A) and (R) are true but (R) does not explain (A). |
| 2. | (A) is true but (R) is false. |
| 3. | (A) is false but (R) is true. |
| 4. | Both (A) and (R) are true and (R) explains (A). |
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The Environment [protection] Act to protect and improve the quality of our environment [Air, Water and Soil] was passed by the Government of India in:
| 1. | 1974 | 2. | 1981 |
| 3. | 1986 | 4. | 1988 |
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