Multiple Choice
Why is the outer core the only layer in Earth that is molten?
A) The pressure decreases within Earth,thus allowing iron to melt.
B) The pressure increases within Earth,thus allowing iron to melt.
C) The temperature is high enough but pressure low enough to melt iron.
D) The temperature is high enough but pressure low enough to melt olivine.
Correct Answer:

Verified
Correct Answer:
Verified
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