A) large number of mosquitoes
B) increase in the amount of dissolved oxygen
C) decrease in the amount of dissolved oxygen in water
D) clogging of gills by mud
Correct Answer: C
Solution :
[c] Sewage containing organic waste should not be disposed in water bodies because it causes major water pollution. So, fishes in such a polluted water die because of decrease in the amount of dissolved oxygen in water.You need to login to perform this action.
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