Fish die in water polluted by sewage due to
Pathogens
Reduction in O2
Clogging of gills by silt
Foul smell
Fish die in water polluted by sewage due to reduction in O2.
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 __________
Name any two diseases caused by drinking polluted water containing sewage.