Railways General Science & Technology Pollution of Air and Water Sample Paper Water Pollution Sample Test Paper-21

  • question_answer
    Eutrophication is caused by

    A)  Acid rain

    B)  Nitrates and phosphates

    C)  Sulphates and carbonates

    D)  \[C{{O}_{2}}\]and \[CO\]

    Correct Answer: B

    Solution :

     Due to addition of domestic sewage, phosphates, nitrates etc. in water body, the water body becomes rich in nutrients especially phosphates and nitrates ions, as a result of nutrient enrichment water bodies become highly productive or eutrophic and this phenomena is called eutrophication.


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