Social Sciences, asked by chingkheinganba90, 11 months ago

compare sail and sima geography

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Answered by BihariSwag

1

Sial refers to the earth's crusts upper layer, it is made up of rocks abundant in silicate and aluminium based minerals. ... Sima is the earth's crusts lower layer and contains rocks with an abundance of magnesium silicate minerals, the word Sima is an amalgam of the first two letters of Magnesium and Silica.

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