Question

What is the meaning of the following sentence?

" Oxygen is the most abundant element (46.5% by weight) the earth's crust followed by silicon (28%) and aluminium (8.1%) " ​

Answer 1

Answer:

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Answer 2

Explanation:

This statement means that the Earth's crust is made up of different minerals. The minerals in the Earth's crust include

• Oxygen which is present in 46.5%-It means that if we take 100 g of Earth's crust i.e. soil it will have 46.5 g of Oxygen. It may be different form like oxides.
• Silicon is present in 28% of the Earth's crust
• Same goes to Aluminium that it is present in 8.1% of Earth's crust
• Note that the minerals may be in different forms.

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