The main cause for abundant coliform bacteria in the river Ganga is:

Disposal of unburnt corpses in river.

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Discharge of effluents from electroplating industries in river.

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Washing of clothes in river.

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Immersion of ashes in river.

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Solution

The correct option is A Disposal of unburnt corpses in river.
The source of coliform bacterial contamination in water is from human urine and faeces.
Disposal of the unburnt human corpses (dead body) in the water lead to the leak of coliform bacteria from the decomposing corpses into the water.
Washing clothes, discharge of effluents from electroplating industries and Immersion of ashes are the cause of river pollution but are not responsible for coliform bacterial contamination.
Hence, option A is correct.

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Similar questions

Q. Question 4
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

The main reason for the abundant coliform bacteria in the water of river Ganga is:
(a) immersion of ashes of the dead into the river
(b) washing of clothes on the banks of the river
(c) discharge of industrial wastes into river water
(d) disposal of unburnt corpses into river water

Given are a few practices associated with ganga river that people do generally. Pick out those that pollute the ganga river.

1) Industries dump there chemical waste in ganga

2) We use river for transportation

3) Washer men use ganga water to wash clothes on the river banks

4) We build turbine on the flowing water of river ganga to generate electricity

5) After cremation ashes of dead bodies and the unburnt bodies are immersed in the ganga river.

6) Use of river water for irrigation.

Q. Industrial waste and effluents discharged into rivers by industries cause water pollution.

Q. Statement: Drinking water supply to New Bombay has been suspended till further orders from Maharashtra Pollution Control Board following pollution of Patalganga river, caused by discharge of effluents from some chemical industries.
Courses of Action:
I. The industries responsible for discharging effluents into the river should be asked to close down immediately.
II. The river water should immediately be treated chemically before resuming supply.
III. The Pollution Control Board should check the nature of effluents being discharged into the river by industries at regular intervals.

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