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| 201. |
The use DDT is banned now a days because it is: |
| A. |
Very costly |
B. |
Not available |
| C. |
Inflammable |
D. |
Not degraded easily |
Answer: Option D
Explanation:
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| 202. |
Maximum greenhouse gas is released by which of the following country? |
| A. |
USA/Korea |
B. |
Pakistan |
| C. |
France |
D. |
England |
Answer: Option A
Explanation:
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| 203. |
Pollution is not caused by: |
| A. |
Thermal power plant |
B. |
Automobile |
| C. |
Radioactive power plant |
D. |
Hydroelectric power plant |
Answer: Option D
Explanation:
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| 204. |
Photochemical smog formed in congested metropolitan cities mainly consists of: |
| A. |
Ozone, peroxyacetyl nitrate and Nox |
B. |
Smoke, peroxyacetyl nitrate and SO2 |
| C. |
Hydrocarbons, SO2 and CO2 |
D. |
Hydrocarbons, ozone and SOx |
Answer: Option A
Explanation:
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| 205. |
Pollution of SO2 destroy: |
Answer: Option B
Explanation:
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| 206. |
Which are the primary constituents of photochemical smog? |
| A. |
SO2 and CO2 |
B. |
NO2 and hydrocarbons |
| C. |
Carbon di-oxide and NO2 |
D. |
Hydrocarbons and CFCs |
Answer: Option B
Explanation:
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| 207. |
Ultraviolet rays of sunlight react and produce: |
Answer: Option C
Explanation:
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| 208. |
Which of the following gases contributes to global warming? |
| A. |
Carbon di-oxide |
B. |
Nitrogen di-oxide |
| C. |
Carbon monoxide |
D. |
Sulphur dioxide |
Answer: Option A
Explanation:
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| 209. |
Green fufler is used against which type of pollution? |
Answer: Option D
Explanation:
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| 210. |
Positive pollution of soil is due to: |
| A. |
Excess use of fertilizers |
B. |
Addition of wastes on soil |
| C. |
Reduction in soil productivity |
D. |
All of these |
Answer: Option D
Explanation:
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