Core
density of planet earth, on average, is 5 515 kg / m3SAE Neung cause the conclusion. The composition is iron. Including nickel and other elements with lighter weight is divided into 2 floor: core outer layer has a thickness of from the earth's surface, about 2, 900 - 5000 kilometers, consisting of iron and nickel in molten images, and has high heat with temperature about 6200 - 6400 off the inner core is the center of the earth. A radius approximately 1 000 kilometers, temperatures around 4 300 - 6,,200 and enormous pressure. Make this is solid state.
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