The crust , mantle and core.
Crust which is also divided respectively into the upper and lower crust, mantle-which is made up of molten hot rocks, the core which is also divided into the inner and outer core.

however, recent studies show that there are other parts of the earth beside the above aforementioned. some parts were moho -the part between the crust and the mantle, the lower crust and the mantle specifically, name derived from its discoverer: andrija mohorovicic. Other parts are: convection zone and radiation zone
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