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Railways Sample Paper RRB (Group D) Sample Test Paper-7

  • question_answer
    The cycling of elements in an ecosystem is called

    A)  Chemical cycles

    B)  Biogeochemical cycles

    C)  Geological cycles

    D)      Geochemical cycles

    Correct Answer: B

    Solution :

    [b] The cycling of elements is an ecosystem is called Biogeochemical cycles.


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