Why is the very center of Earth's core a solid and not a liquid?

a. There is less metal in the central core

b. The central core has a combination of gases with the metals.
c. Accretion "seeded" Earth with a solid central core.
d. The pressure at the central core raises the melting point of the metals higher than its temperature.
e. The central core is a frozen block of water ice.


d

Physics & Space Science

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