Geography, asked by ziya1350, 7 months ago

difference between sial and Sima​

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Answered by deepmahigeeta
11
Sial is composed of silicon and aluminium.It is upper layer which forms a discontinuous cover over the Earth's crust and is entirely absent the ocean floor. Sima is composed of silicon and magnesium. This is the second layer below sial which forms the ocean base. It is also called oceanic crust


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