Sewage containing organic waste should not be disposed in water bodies because it causes major w...

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Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. Fishes in such a polluted water die because of:
\( P \)
(a) Large number of mosquitoes
(b) Increase in the amount of dissolved oxygen
W.
(c) Decrease in the amount of dissolved oxygen in water
(d) Clogging of gills by mud
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