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Presence of the fertilizers and sewage in polluted water provides a lot of nitrogen, causing excessive growth of algae which subsequently reduces the amount of dissolved oxygen in water.Can you name this process of reduction of dissolved oxygen due to the excess growth of algae.

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Presence of the fertilizers and sewage in polluted water provides a lot of nitrogen, causing excessive growth of algae which subsequently reduces the amount of dissolved oxygen in water.Can you name this process of reduction of dissolved oxygen due to the excess growth of algae.






 
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