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What do geologists look at for proof that Earth's core contains mostly iron?

A. The Sun
B. Comets
C. The moon
D. Other planets

User Cygorger
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1 Answer

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Answer:Comets(ap3x)

Explanation:Comets have always been known to have iron in them. They are dragged into earths atmosphere because of the magnetic pull. (I’m almost positive this is the correct explanation)

User Mkleint
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