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Discussion :: World Climate and Weather

  1. The main mineral constituents of the continental mass water ________ and alumina.

  2. A.

     Iron Oxide

    B.

     Silica

    C.

     Water

    D.

     Oxygen

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    Answer : Option B

    Explanation :

    The main constituents of Earth's continental mass are water, silica and alumina and that is why the upper portion is generally termed as "SIAL".


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