The major cause of pollution is:

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. Which of the following does not cause pollution?

   A. CO2
   B. SO2
   C. H2
   D. CO

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

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

4. The supersonic jets cause pollution by thinning of:

   A. O3 layer
   B. SO2 layer
   C. O2 Layer
   D. CO2 layer

5. The cause of water pollution?

   A. Smoke
   B. 2, 4-D and pesticides
   C. Automobile exhaust
   D. Aeroplanes

6. What is the major cause of diminishing wild life?

   A. Cannibalism
   B. Habitat destruction
   C. Felling of trees
   D. Paucity of drinking water

7. 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

8. Most harmful heavy metals causing water pollution:

   A. Pb, Hg, Cr, Cd
   B. P,Mn,B,Mg
   C. N,K,Mo
   D. Zn,Mo,Mg,Ag

9. The CFC pollution sources include:

   A. Jet air crafts only
   B. Fire extinguishers and jet air crafts
   C. Refrigerators and jet air crafts
   D. All of these

10. With the increase in water pollution, the BOD:

    A. Decreases
    B. Increases
    C. Remains the same
    D. Is no measure of pollution