2012/04/09

earth - ipad 1024 x 1024



Earth is the only planet in the solar system with a crust of tectonic plates floating on top of a magma interior. Over time, the plate tectonics pull carbon and other remnants of life back into the interior of the Earth where they are recycled. Without the plate tectonics there would be no way to recycle the carbon, and the Earth would overheat and our planet would end up hot and barren like Venus.

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