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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Since the pre-industrial period, global average land temperatures have increased almost twice as fast as global average surface temperatures. This may primarily be due to:
| 1. | Higher ocean area than land area receiving more incident solar radiation |
| 2. | High heat capacity of water |
| 3. | Industries being located on land |
| 4. | Burning of fossil fuels by automobiles on the land |
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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Consider the following statements:
| I: | Freshwater algal blooms, the result of an excess of nutrients [particularly phosphates] cause large scale fish mortality. |
| II: | Algae grow very quickly under high nutrient availability, but each alga is short-lived, and the result is a high concentration of dead organic matter, the decay of which consumes dissolved oxygen in the water, resulting in hypoxic conditions. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct and II is incorrect
4. Both I and II are correct
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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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| Statement I: | The ozone hole is a “hole” where no ozone is present. |
| Statement II: | The ozone hole is a result of catalyzed ozone loss from chlorine and bromine compounds. |
1. Only Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Only Statement I is correct.
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