SSC Ecology And Environment Sample Paper NCERT Sample Paper-4

  • question_answer
    Eutrophication is

    A)  Excessive oxygen in ponds

    B)  Abundant fertilizers in the lake

    C)  The lack of algae in the lake

    D)  Abundant nektons in the lake

    Correct Answer: B

    Solution :

    [b] Eutrophication is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both. Eutrophication can be a natural process in lakes, occurring as they age through geological time. Negative environmental effects include the depletion of oxygen in the water, which may cause death to aquatic animals.

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