Question

nimat told her friend that today at school her teachers told them that the earth's crust is made up the elements. On the basis , the top leyer of the earth which is called Sial​

Answer 1

Answer:

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Explanation:

Answer 2

Answer:

crust

Explanation:

The uppermost layer of the crust is called the sial, consisting of silicate and aluminium (Si = silicate, Al = aluminium). On average, the thickness of the sial is till 25 km from the surface.