Certain cities of Pakistan have been subjected to tremendous air pollution due to increased:

Related Mcqs:

1. The air pollution caused by phosphate fertilizer factories is due to:The air pollution caused by phosphate fertilizer factories is due to:

   A. Phosphene
   B. SiF4
   C. Dust
   D. Halogens

2. In big cities, air pollution is mainly due to:

   A. Burning of fossil fuel
   B. Thermal power plants
   C. Sewage
   D. Suspended particles

3. The main cause of pollution in metro cities is due to:

   A. Industries
   B. Automobiles
   C. Home fuel
   D. Trees

4. The percentage of air pollution caused due to smoke:

   A. 10-15%
   B. 15-20%
   C. 20-25%
   D. 2-5%

5. The light of cities is reduced in comparison to villages due to the presence of:

   A. SO2 and SO3
   B. SO2 and oxides of nitrogen
   C. Hydrocarbons and N2O
   D. Suspended particulate matter

6. Air pollution is caused by:

   A. The smoke, gases and fumes coming out of the factory chimneys
   B. The transport vehicles badly pollute the air
   C. Both (a) & (b)
   D. None of these

7. Air pollution effects are usually found on:

   A. Leaves
   B. Flowers
   C. Stems
   D. Roots

8. Air pollution is maximum caused by:

   A. Sewage and industrial effluents
   B. Household detergents and pesticides
   C. Automobile exhausts and chemicals from industry
   D. Sewage and pesticides

9. This acts as bioindicator of air pollution:

   A. Alga
   B. Lichen
   C. Pinus
   D. Mustard
   E. Fern

10. Air pollution is not caused by:

    A. Thermal power plant
    B. Diesel engine
    C. Hydroelectric power station
    D. Pollen grain