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  1. Percentage of silica in a good brick earth lies between

    2. A.

     5 to 10 %
    B.

     20 to 30 %
    C.

     50 to 60 %
    D.

     70 to 80 %

    View Answer

    Workspace

    View Answer

    Answer : Option C

    Explanation :

    Explanation Not Provided

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