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

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Solution

Option (a) is correct.
Coliform bacteria found is human intestines and in unburnt corpses. People discharge wastes, throw ashes and dispose of unburnt corpses in Ganga. As a result, the water starts getting polluted due to the unwanted material which harms the water quality.

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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

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

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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Pollution in Ganga

Standard X Physics

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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

Option (a) is correct. Coliform bacteria found is human intestines and in unburnt corpses. People discharge wastes, throw ashes and dispose of unburnt corpses in Ganga. As a result, the water starts getting polluted due to the unwanted material which harms the water quality.

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

Option (a) is correct.
Coliform bacteria found is human intestines and in unburnt corpses. People discharge wastes, throw ashes and dispose of unburnt corpses in Ganga. As a result, the water starts getting polluted due to the unwanted material which harms the water quality.