The interior structure of the Earth is layered in spherical shells, like an onion.
These layers can ..... Jump up ^ First Measurement Of Magnetic Field
Get information, facts, photos, news, videos, and more about the interior of the
Nov 25, 2014
Watch BBC video clips full of interesting facts about the layers
Oct 29, 2014
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Sep 19, 2016
Thanks to earthquakes, the seimic waves they give off and the instruments used to gather data abouth such events, we now know the chemical composition ...