*$_Which of the following layers of the earth is believed to have the heaviest mineral materials of highest density ??

*$_Which of the following layers of the earth is believed to have the

1.	*$_Which of the following layers of the earth is believed to have the heaviest mineral materials of highest density ??
A.	Central core
B.	Crust
C.	Mantle
D.	Both (b) and (c)
Answer» B. Crust

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*$_Which of the following layers of the earth is believed to have the heaviest mineral materials of highest density ??

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