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The Earth's interior is composed of four layers ... Fahrenheit (5,000 and 7,000 degrees Celsius). Above the inner core is the outer core, a shell of liquid iron. This layer is cooler but still ...
Beyond the outer core lies the mantle, a 1,800-mile-thick layer of viscous molten rock on which Earth's outermost layer, the crust, rests. On land, the continental crust is an average of 19 miles ...
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Scientists Baffled to Find Signs of Another Core Within Earth’s Inner Core, Say ‘We Have to Rewrite the Textbooks’Researchers are now trying to understand the "innermost inner core" of the Earth by studying how seismic waves travel through ...
The Earth is almost a sphere. These are its main layers, starting with the outermost: crust - relatively thin and rocky mantle - has the properties of a solid, but can flow very slowly outer core ...
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