The final layer is the Inner Core, it is the hottest and deepest part of the Earth. @geny55
OpenStudy (lizz123):
This solid layer is composed of Iron and Nickle cement. The Inner Core is about 15000F deep. This layer is the second thinnest layer out of all the earth layers. The inner cote layer is the hottest part of earth and it will probably take centuries to come up with the right technology to have a machine go in the earth and test all of the rocks and minerals.
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jagr2713 (jagr2713):
@TypnoEchosis please avoid giving direct answers
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