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Which is evidence that supports the dynamo theory? A. Silicon is a conductive material. B. Convection occurs in the mantle very slowly. C. Iron does not conduct electricity. D. Earth's core contains mostly
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Which is evidence that supports the dynamo theory?

A. Silicon is a conductive material.
B. Convection occurs in the mantle very slowly.
C. Iron does not conduct electricity.
D. Earth's core contains mostly iron and nickel.

User Goodmayhem
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D Earth's core contains mostly iron and nickel

User Bzn
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