Q37 of 287 Page 362

Name two common pathogens in polluted water.

Pathogens like bacteria, viruses, protozoan worms and protozoa usualy from sewage waste, cause water pollution. Eg-Coliform bacteria cause water pollution.


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What is water harvesting?

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Define water pollution.

 38

Name any three water pollutants.

 39

What is sewage?