8. Pollution

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1. which is the Natural reasons responsible for air pollution? 1) Burning of fuel like coal, timber, LPG 2) Industrialization 3) Cyclones and dust storms 4) Use of elements like uranium

2. Which poisonus gas emits from Industrial leakage produce skin cancer, asthma, respiratory diseases. 1) Methane 2) Carbon monoxide 3) nitrogen 4) Sulphur dioxide

3. when Bhopal gas accident happen? 1) 12 Dec.1984 2) 16 Dec.1984 3) 2 Dec.1984 4) 11 Dec.1984

4. What Effect of air pollution on plants are seen ? 1. Stomata get closed. 2. Slowing down of rate of photosynthesis. 3. Growth is retarded. Leaves fall off or become yellow. 1) 1 and 2 2) 2 and 3 3) all 1,2,3 4) 1

5. which is incorrect pair ? 1) Depletion in Ozone layer -Global warming 2) Acid Rain -Oxides of sulphur and nitrogen 3) Black city - Delhi 4) Pesticides-Mental weakness

6. which of the folowing is Inorganic pollutant? 1) Weedicides 2) compounds of arsenic 3) insecticides 4) fertilizers

7. Government of India has enacted some laws for control, regulation and prevention of pollution. match the Following are laws by year a) Water pollution and prevention act - 1) 1986 b) Air pollution and prevention act - 2) 1981. c) Environmental Protection Act - 3) 1974 1) a) - 1 , b) - 2 , c) -3 2) a) - 2 , b) - 1 , c) -3 3) a) - 3 , b) - 1 , c) -2 4) a) - 3 , b) - 2 , c) -1

8. what is full form of CNG? 1) Combine Natural Gas 2) Compressed Nuetral Gas 3) Compressed Natural Gas 4) Complete Natural Gas

9. In which of the following state large number of tanning centers are present? 1) Goa 2) Maharashtra 3) Hariyana 4) Tamilnadu

10. which is correct statement about Ozone Gas? 1) ozone layer is present below the stratosphere, 2) ozone layer is increases. 3) ozone layer is at the height of 48 kilometres from earth’s surface. 4) It produce ultraviolet rays