Question

Sima layer consists of silicate
and

Answer 1

Answer:

Sima is an old geological term for the lower layer of the Earth's crust. This layer is made up of magnesium silicate minerals-rich rocks. Since the sima usually reaches the surface as basalt, this layer is often referred to as the crust's "ocean layer". The layer's density ranges from 3.1 to 5.0.

Explanation:

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Answer 2

Answer: The Sima layer consists predominantly of silicate of magnesium, iron and other denser metals. It is a continuous zone of basaltic rocks forming the ocean floors.