Q. No.Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for:
1. making tubes and pipes
2. making plastic sacks
3. use as a fertilizer
4. construction of roads
1. making tubes and pipes
2. making plastic sacks
3. use as a fertilizer
4. construction of roads
Which of the following protocols did aim for reducing the emission of chlorofluorocarbons into the atmosphere?
1. Geneva protocol
2. Montreal protocol
3. Kyoto protocol
4. Gothenburg protocol
Assertion: During green revolution, crop production is increased.
Reason: Deforestation is one of the method of green revolution to increases productivity.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
Which of the following pairs of gases is mainly responsible for green house effect?
1. Carbon dioxide and methane
2. Ozone and Ammonia
3. Oxygen and Nitrogen
4. Nitrogen and Sulphur dioxide
Which of the following methods is the most suitable for the disposal of nuclear waste?
| 1. | Bury the waste within rocks, deep below the earth's surface |
| 2. | Shoot the waste into the space |
| 3. | Bury the waste under the Antarctic ice-cover |
| 4. | Dump the waste within rocks, under deep ocean |
To protect and improve the quality of our environment, government of India has passed Environment (Protection) Act in the year ______
1. 1974
2. 1981
3. 1986
4. 1987
Which of the following is not correct with respect of control of vehicular air pollution in India?
1. Use of CNG as fuel
2. Not phasing out of old vehicles as they have better technology
3. Use of unleaded petrol, low-sulphur petrol and diesel
4. Use of catalytic converter
National Forest Policy __A__ of India has recommended __B__ forest cover for the plains and __C__ for the hills. Fill the blanks with suitable A, B and C
A B C
1. 1988 33% 67%
2. 1988 30% 19.4%
3. 1989 30% 65%
4. 1987 19.4% 30%
Biomagnification of DDT in aquatic food chain leads to high concentration of DDT in fish eating birds. It results in
(1) Disturbance in calcium metabolism in birds.
(2) Thinning of egg shell and their premature breaking.
(3) Decline in birds population
1. (1) and (2) only
2. (2) and (3) only
3. (1) and (3) only
4. All (1), (2) and (3)
The Montreal Protocol refers to:
1. persistent organic pollutants
2. global warming and climate change
3. substances that deplete the ozone layer
4. biosafety of genetically modified organisms
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