Why Is the Outer Core the Only Layer in Earth

question 24

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.

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