Eutrophication 4
Eutrophication 4 : Excessive water plant growth that occurs where there are large amounts of nutritious substances such as nitrogen, phosphorus or sulphur, deriving from natural or man-made sources - fertlizers, detergents, civil or industrial waste. Microscopic algae flourish and, since they cannot be completely digested by the ecosystem, cause a major baceria activity and lack of oxygen needed for fish to survive. Eutrophication is among causes of environmental decay
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