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19 July, 04:28

The Earth's inner core reaches temperatures that are at times greater than 9000°F. What causes this layer to remain solid despite the high temperature?

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  1. 19 July, 04:41
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    The earth's inner core remains solid due to high amounts of pressure, so even though it should be liquid due to an extremely high temperatures, it acts as a solid. More specifically, solid iron-nickel, or pure crystalised iron. The pressure at the earth's core is almost three and a half million times higher than on the surface, and it is this pressure that causes the atomic structure of iron to actually change.
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