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the earth has many different layers.
the deepest layer is the inner core, the inner core is 1221 km thick, the density is 12.3, its phase is solid and it is made of iron and nickle.
next is the outer core, the outer core is liquid it is 2259 km thick, its density is 9.9 and it is also made of iron and nickle.
last the crust, the crusts phase is solid its density is 2.2, its thickness is 30 km and it is made of silicon aluminum and oxygen.
now we have the mantle the mantles thickness is 2891 km the density is 4.4, the phase is liquid and its made of lava.
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