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Introduction to Carbon Family

The Sial laye...

Question

The Sial layer is formed of _ and __.

A

silica and argon

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B

silica and aluminium

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C

scandium and argon

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D

sulfur and argon

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Solution

The correct option is B silica and aluminium
Sial refers to the earth’s crusts upper layer, it is made up of rocks abundant in silicate and aluminium-based minerals. The word Sial itself is an amalgam of the first two letters of aluminium and silica, Sial runs anywhere from 5-70KM deep from the surface.

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