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Discussion :: UPSC Civil Service Exam Questions

  1. For fish habitat in a river, the minimum dissolved oxygen required is

  2. A.
    2 mg/l
    B.
    4 mg/l
    C.
    8 mg/l
    D.
    10 mgl

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    Answer : Option B

    Explanation :

    No answer description available for this question. Let us discuss.


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