Question

State the composition of sial layer​

Answer 1

Answer:

Because the ocean floors are mainlysima, it is also sometimes called the 'oceanic crust'. The name 'sima' was taken from the first two letters of silica and of magnesia. Comparable is thename 'sial' which is the name for the upper layer of the Earth's continental crust.

Explanation:

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Answer 2

Answer: The sial layer consists of silicates and aluminium and other lighter metals. It is called sial (Si - silicate; Al - aluminium).