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Discussion :: Building Materials

  1. A good brick earth should contain:

    2. A.

     About 20% to 30% of alumina
    B.

     About 50% to 60% of silica
    C.

     Not more than 5% of lime
    D.

     All the above

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    Workspace

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    Answer : Option D

    Explanation :

    Explanation Not Provided

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