The main cause for abundant coliform bacteria in the river Ganga is
(a) disposal of unburnt corpses into water
(b) discharge of effluents from electroplating industries
(c) washing of clothes
(d) immersion of ashes
(a)
The fundamental cause for abundant coliform bacteria in the river Ganga is disposal of unburnt corpses into water. Coliform are the gathering of microbes discovered in human digestive organs whose presence in water demonstrates contamination by disease-causing microorganisms.
Hence option (a) is correct.