The cause of water pollution?

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 major cause of pollution is:

   A. Man
   B. Plants
   C. Animals
   D. Man and animals

6. Water pollution is caused by:

   A. Ammonia
   B. Phytoplankton
   C. Industrial effluents
   D. Smoke

7. 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

8. Common indicator organism of water pollution is:

   A. Eichhornia crassipes
   B. Escherichia coli
   C. Entamoeba histolytica
   D. Lemna pancicostata

9. Minamata diseased was caused due to water pollution by:

   A. Lead
   B. Cyanides
   C. Methyl isocyanate
   D. Mercury

10. If water pollution continues at its present rate, it will eventually:

    A. Make oxygen molecules unavailable to aquatic life
    B. Make nitrates unavailable to aquatic life
    C. Prevent precipitation
    D. Stop the water cycle