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The Earth has a layered structure made up of the core ... The inner core is made from solid iron and nickel. In this diagram, the red lines represent the edges of the tectonic plates that make ...
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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.
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