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Water pollution is caused mainly by thr...

Water pollution is caused mainly by three factors such as biological, chemical and physical. Can you name some chemical and physical factors of water pollution?

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Chemical factors .
i. Organic Chemical like PCBs , biocides etc.
ii. Inorganic chemcial like phosphates, nitrates , fluorides etc.
iii. Heavy metals like As, Pb, Cd, Hg etc.
Physical factors .
i. Hot water discharge from industries .
iii. Oil spills from oil carriers etc.
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