Water pollution

Which is correct matched ? 1. Arsenic poisoning -Black foot disease. 2. Secondary Effluent treatment-Biological process. 3. Pyrolysis -Solid soil waste disposal. 4. Tubifex -Water pollution indicator. 5. Biomagnification -Degradable pollutants.

Black water fever is caused due to (a) Nitrate pollution in water (b) Infection of Leishrmiania donovani (c) Infection by sporozoan Plasmodium (d) Infection of Yersinia pestis

Most abundant water pollutant is

Most common and commerical water pollutant is

Most common and commerical water pollutant is Industrial waste ; Fertilizers ; Detergents ; PCB's

What is biological magnification ? Explain how DDT as a water pollutant undergoes biological magnification .

Thermal pollution of water bodies is due to discharge of

Pollution of water originates from human activities. Through different paths, pollution reaches surface or ground water. Which of the following are true ?

Which is not a water pollutant?

Name the following: One water pollutant.