state the composition of the sial?
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The Earth's crust is called SIAL as it consists of majority of, silica and aluminium. The Earth's mantle is called SIAL as it is mainly composed of silica and magnesium.
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The Earth's crust is called SIAL as it consists of majority of, silica and aluminium. The Earth's mantle is called SIAL as it is mainly composed of silica and magnesium
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