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Discussion :: Environmental Engineering - Civil Engineering

  1. The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of

    2. A.

     1 mg/liter
    B.

     10 mg/liter
    C.

     100 mg/liter
    D.

     1000 mg/liter

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    Workspace

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    Answer : Option B

    Explanation :

    Explanation Not Provided

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