how is the amount of oxygen depleted in water
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Microorganisms that live in water feed on biodegradable substances. When too much biodegradable material is added to water, the number of microorganisms increase and use up the available oxygen. This is called oxygen depletion.
anurag0911:
Tnx
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by algae blooms which are formed by water pollution. and the term given to it is eutrophication
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