VIII Pollution

1. Which gas is the major pollutant of air?

• (a) carbon monoxide
• (b) Nitrogen
• (c) Oxygen
• (d) Propane

2. The increase in concentration of which gas is not responsible for Global Warming?

• (a) Sulphur dioxide
• (b) Nitrogen
• (c) Carbon dioxide
• (d) Methane

3. In which year Ganga Action Plan was launched?

• (a) 1980
• (b) 1984
• (c) 1982
• (d) 1985

4. What radiations are absorbed by CO2?

• (a) Ultrared radiations
• (b) Infrared radiations
• (c) Ultraviolet radiations
• (d) None of these

5. Which element is present in the exhaust of automobiles?

• (a) Lead
• (b) Calcium
• (c) Chromium
• (d) Magnesium

6. The phenomenon of marble cancer is due to

• (a) soil particles
• (b) fog
• (c) CFCs
• (d) acid rain

7. The solid or liquid particles dispersed in the air are called

• (a) oxides
• (b) acids
• (c) hydrocarbons
• (d) aerosols

8. The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is

• (a) air pollution
• (b) soil pollution
• (c) water pollution
• (d) noise pollution

9. The major causes of air pollution include

• (a) burning of coal and petroleum
• (b) afforestation
• (c) deforestation
• (d) recycling of paper

10. Bhopal tragedy was caused due to

• (a) air pollution
• (b) emission of poisonous gas
• (c) water pollution
• (d) leakage of poisonous gas