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which is the most abundant in the earth's crust?why?

A. silicates
B. Halides
C. Carbonates
D. Sulfides

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Sagot :

Answer:

A

Explanation:

Oxygen is the most abundant element in the earth's crust and silicon is next. The compound of silicon and oxygen, which is silica, makes up about 60 pct of this crust.

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Answer:

A

Explanation:

Al is the most abundant metal in the earth's crust.

Aluminum is the third most abundant element (7.4%) of the earth's crust. Oxygen and silicon are the first and second most abundant elements.