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Name the layers of earth starting at ist crust and going on. Describe the composiyion of each layer

User Levigroker
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The crust, Upper Mantle, Lower Mantle, Outer Core, and Inner Core. The solid inner core of iron has a radius of about 760 miles. The outer core is composed of a nickel-iron alloy. The outer core is about 1,355 miles thick. 
User Ivotron
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