thє ínnєr cσrє σf єαrth rєmαínѕ αѕ ѕσlíd.whч?
(plѕ dσn't rєpσrt mч quєѕtíσn)
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The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid. It turns out that many materials can be a solid at a higher temperature if the pressure is also higher.
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The Earth's inner core is thought to be slowly growing as the liquid outer core at the boundary with the inner core cools and solidifies due to the gradual cooling of the Earth's interior (about 100 degrees Celsius per billion years).
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