Question

what is the meant by sima and sial ?​

Answer 1

Answer:

Hlo friend here's your answer,

The crust is divided into two shells, where sial is the upper shell and Sima is the lowest shell. The sial is made up of silica and aluminum while Sima has an abundance of silica and magnesium.

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Answer 2

Answer:

Here is ur answer mate

Explanation:

Sima- Sima refers to the layer below sial. Here the rocks are mainly rich in silica and magnesium.It is generally found below the bottom of ocean basins

Sial- Sial refers to the uppermost layer of the lithosphere. It is composed of rocks rich in silica and aluminum

Hope this will help u