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5 wordies list
eutrophication |
(n): excessive nutrients in a lake or other body of water, usually caused by runoff of nutrients (animal waste, fertilizers, sewage) from the land, which causes a dense growth of plant life; the decomposition of the plants depletes the supply of oxygen, leading to the death of animal life
(n): a process occurring in living organisms
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"There is evidence that the effluent that is pumped back into local water streams does affect their chemical composition and aquatic life. In extreme cases, the result can be something called eutrophication, which occurs when a higher concentration of nutrients results in algae blooms."
(seen here.)