Question

What is eutrophication​

Answer 1

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excessive richness of nutrients in a lake or other body of water, frequently due to run-off from the land, which causes a dense growth of plant life.

Answer 2

Large fluctuations in dissolved oxygen levels may be the result of an algal blooms. ... When these algae die, they are decomposed by bacteria which consume oxygen in this process so that the water can become temporarily hypoxic. Oxygen depletion, or hypoxia, is a common effect of eutrophicationin water.

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