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Rocks in the Earth's mantle contain a higher percentage of _______ and _______ than do rocks in the Earth's crust. a. iron and silicon b. iron and magnesium c. silicon…

Rocks in the Earth's mantle contain a higher percentage of _______ and _______ than do rocks in the Earth's crust. a. iron and silicon b. iron and magnesium c. silicon…
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Rocks in the Earth's mantle contain a higher percentage of _______ and _______ than do rocks in the Earth's crust.

a. iron and silicon
b. iron and magnesium
c. silicon and oxygen
d. magnesium and oxygen

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User Jajula Siva
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2 Answers

5 votes
Letter b is the answer
answered
User Ady Ngom
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8.1k points
6 votes
Iron and magnesium we all know that
answered
User Nerxis
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7.5k points
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