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What causes a lake to become eutrophic?

In: Lakes and Rivers [Edit categories]

Answer:

Accumulation of organic matter.

"Eutrophication occurs when fertilizers, animal waste, sewage, or other substance rich in nitrogen and phosphorus flow into waterways, causing extensive algae growth. The algae use up the oxygen supply during their rapid growth and after their deaths during the decaying process"

First answer by ID1633436008. Last edit by ID1633436008. Question popularity: 2 [recommend question].

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