Define eutrophication. from Biology Environmental Issues
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    Environmental Issues

    Multiple Choice QuestionsOne Word Answers

    21. Coin one word for the following statements : Increase in concentration of the toxicant at successive trophic levels

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    22. Coin one word for the following statements :
    Name the unit to measure noise pollution.
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    Multiple Choice QuestionsShort Answer Type

    23. Expand CNG, CPCB and BOD.
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    24. Define eutrophication.

    Eutrophication is the  process by which a water body  acquires a high concentration of nutrients such as nitrogen and phosphorus, which encourage the growth of aquatic organisms. It is the natural aging of a lake by nutrient enrichment of its water.
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    25. What are e-wastes ?
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    26. What are Dobson units ?
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    Multiple Choice QuestionsOne Word Answers

    27. Expand DU .
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    28. Which term is used for pollutants that are degraded by natural means ?
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    29. What is the term for undesired high level of sound?
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    30. Name the biggest source of air pollution in large cities.
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