Earth's Innermost Core Is Solid, Not Liquid, Because

question 94

Multiple Choice

Earth's innermost core is solid, not liquid, because

• A) the core temperature is too low to melt iron.
• B) differentiation caused all of the heavy, solid material to sink to the bottom while Earth was forming.
• C) all the liquid has moved up into the mantle via convection.
• D) the pressure is too high for the material to be in a liquid state.
• E) iron does not melt.

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