Common indicator organism of water pollution is:

Related Mcqs:

1. Escherichia coli is used as an indicator organism to determine pollution of water with:

   A. Heavy metals
   B. Faecal matter
   C. Industrial effluents
   D. Pollen of aquatic plants

2. The transfer of energy from organism to organism is a natural community establishes:

   A. Food chains
   B. Biological control
   C. Natural barriers
   D. All the above

3. 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

4. The high amount of E. coli in water in the indicator of:

   A. Hardness of water
   B. Industrial pollution
   C. Sewage pollution
   D. Presence of chlorine in water

5. Which one of the following organisms is used as indicator of water quality?

   A. Beggiota
   B. Chlorella
   C. Azospirillium
   D. Escherichia

6. Water pollution:

   A. Increases oxygenation
   B. Decreases turbidity
   C. Increases turbidity deoxygenation
   D. Increases photosynthesis

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. The sea water gets pollution mainly due to:

   A. Industrial waste
   B. Oil spills
   C. Death of marine fauna
   D. None of these

9. Thermal pollution in water bodies is caused due to discharge of:

   A. Hot water from power plants
   B. Hot chemicals from industries
   C. Waste from mines
   D. Waste from agricultural fields

10. The cause of water pollution?

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