Question

Define Crust of the Earth
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Answer 1

Answer:

The uppermost layer of the Earth is called crust.

Explanation:

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Answer 2

The uppermost layer over the earth’s surface.

•It is the thinnest of all the layers.

•It is about 35 km. on the continental masses and only 5 km. on the ocean floors.

•The main mineral constituents of the continental mass are silica and alumina. It is thus called si-al (si-silica and al-alumina)

•The oceanic crust mainly consists of silica and magnesium; it is therefore called sima (si-silica and ma-magnesium)

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