Eutrophication is the natural aging of a lake by nutrient enrichment of its water. As lake’s fertility increases, plant and animal life increases, and organic remains begin to deposit at the bottom of the lake. Depending upon the climate, size of the lake and other factors, the natural aging of a lake may span thousands of years. But, pollutants from human’s activities like effluents from the industries and homes can radically accelerate the aging process. This process is known as Cultural Eutrophication or Accelerated Eutrophication.
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