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What is the Crust Made Of?

Answer – The Earth’s crust is made of solid rocks and minerals, the most abundant of which are oxygen, silicon, aluminum, and iron. 

Explanation:

The outermost layer of the Earth is the crust, and it is the only layer of the Earth that is completely solid at all times; the mantle is in a semi-solid state while the core is molten. 

The solidity of the Earth’s crust is due to the presence of hard rocks (primarily igneous and metamorphic). The chemical composition of these rocks varies from place to place and there is a significant difference between continental crust and oceanic crust. Overall, the most abundant minerals found in the crust are oxygen, silicon, aluminum, and iron.


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