What is the composition and approximate thickness of the mantle?

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Question:

What is the composition and approximate thickness of the mantle?

Answer:

Answer: Mantle lies between earth’s core and crust layers. It is made up of rock containing magnesium, iron, aluminium and oxygen.

The percentage composition of main elements are- 44.8% oxygen, 21.5% silicon, 22.8% magnesium.

Mentle is about 1802 miles thick.

Explanation:

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