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Environmental-Issues

Biochemical oxygen demand in a river water

Remains unchanged when algal bloom occurs Increases when sewage gets mixed up with river water Has no relationship with concentration of oxygen in water Gives a measure of Salmonella in water

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Biochemical oxygen demand in a river water

Increases when sewage gets mixed up with river water

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Which is not correct approach to reduce global warming?</h2></div>

Biochemical oxygen demand in a river water

When domestic sewage mixes with river water, __________<br> </h2></div>

Biochemical oxygen demand in a river water&nbsp;</h2></div>

Environmental Issues

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