InterviewSolution
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What is eutrophication? How does a lake undergo accelerated eutrophication? |
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Answer» Eutrophication • It is defined as the natural aging of a lake by biological enrichment of its water. • Water in a young lake is cold and clear to support life. • With time, it is enriched with nutrients by streams draining into it. • This encourages growth of aquatic life—plant and animal life. • Organic remains deposit at the bottom of the lake and with time makes the water warmer. • Eventually, floating plants develop in the lake, finally converting into land. • According to climate, size of lake and other factors, natural ageing of lake may span thousands of years. • The accelerated aging of lakes due to sewage and agricultural and industrial wastes is called cultural or accelerated eutrophication. |
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