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Q. No.Consider the given statements:
I. Eutrophication is the natural aging of a lake by nutrient enrichment of its water.
II. Cultural Eutrophication is in effort by the Ministry of Culture to save lakes and ponds from eutrophication.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Water Pollution |
68%
From NCERT
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Identify the incorrect statement:
| 1. | Mercury and DDT undergo biomagnifications in the terrestrial food chain. |
| 2. | Nitrates and phosphates can cause rapid enrichment of nutrients in a lake. |
| 3. | Recycling is the only solution for the treatment of E-waste. |
| 4. | Without greenhouse effect the average temperature at surface of earth would have been minus 180C |
Subtopic: Water Pollution |
67%
From NCERT
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Arrange the following acts in their chronological sequence in which they were passed in India [earliest to latest]:
1. II, III, I
2. III, I, II
3. II, I, III
4. I, II, III
| I: | Air [Prevention and Control of Pollution] Act |
| II: | Environment [Protection] Act |
| III: | Water [Prevention and Control of Pollution] Act |
1. II, III, I
2. III, I, II
3. II, I, III
4. I, II, III
Subtopic: Introduction to Pollution & Types | Air Pollution | Water Pollution |
70%
From NCERT
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50%
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CNG is better than diesel as a fuel for automobiles. This would be most strongly supported by which of the following statements?
1. CNG burns more efficiently.
2. CNG is cheaper.
3. It cannot be adulterated.
4. It cannot be siphoned off by thieves.
1. CNG burns more efficiently.
2. CNG is cheaper.
3. It cannot be adulterated.
4. It cannot be siphoned off by thieves.
Subtopic: Air Pollution |
83%
From NCERT
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Identify the incorrect statement:
| 1. | In human eye, cornea absorbs UV-B. |
| 2. | Good ozone is found in stratosphere. |
| 3. | Thickness of ozone is measured in Dobson Units. |
| 4. | Ozone hole is particularly marked over equatorial regions. |
Subtopic: Ozone Layer Depletion |
84%
From NCERT
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What is the minimum percentage of impurities present that makes domestic sewage unfit for human use?
1. 0.1
2. 1.0
3. 5.0
4. 10.0
1. 0.1
2. 1.0
3. 5.0
4. 10.0
Subtopic: Water Pollution |
86%
From NCERT
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Any gas that absorbs incoming solar radiation or outgoing infrared radiation is called as radiatively active gas. One of such gases which is major contributor to total global warming is:
1. Carbon dioxide
2. Methane
3. CFCs
4. N2O
1. Carbon dioxide
2. Methane
3. CFCs
4. N2O
Subtopic: Green House Effect & Global Warming |
82%
From NCERT
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What is not true regarding the Montreal Protocol?
| 1. | It is an international treaty designed to protect the ozone layer. |
| 2. | It was signed in 1987. |
| 3. | It entered into force on 1 January 1989. |
| 4. | Same roadmap was developed for both developed and developing countries for reducing ozone depleting substances. |
Subtopic: Ozone Layer Depletion |
65%
From NCERT
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What are the consequences of deforestation?
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I. | Enhanced carbon dioxide concentration in the atmosphere |
| II. | Loss of biodiversity |
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Resource Utilisation & Maintenance |
91%
From NCERT
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