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Discussion :: Environmental Engineering

  1. Permissible safe limit (TLV) of __________ toxic gas is 100-1000 parts per million (ppm).

    2. A.
    highly
    B.
    moderately
    C.
    extremely
    D.
    very extremely

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    Workspace

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    Answer : Option B

    Explanation :

    No answer description available for this question.

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