Geography, asked by bosesubhradeep419, 2 months ago

Sima comprises of minerals Line
and​

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Answered by aarpitverma2008
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Answer:

The main mineral constituents of the continental mass are silica and alumina. ... The oceanic crust mainly consists of silica and magnesium; it is therefore called sima (si-silica and ma-magnesium). Just beneath the crust is the mantle which extends up to a depth of 2900 km.

Answered by mayankdaiya23
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Answer:

The main mineral constituents of the continental mass are silica and alumina. ... The oceanic crust mainly consists of silica and magnesium; it is therefore called sima (si-silica and ma-magnesium) (Fig. 2.2).

Explanation:

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