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Biology 22 Online
OpenStudy (anonymous):

The mantle: is made of solid rock contains more iron than the crust is as hot as the surface of the sun all of the above

OpenStudy (anonymous):

i have a couple questions about biology

OpenStudy (anonymous):

The Earth’s mantle is about 2,970 km thick, making up about 84% of the Earth’s total volume. You might think it’s a liquid, since volcanoes erupt lava from the mantle. But actually, the mantle is mostly solid rock.

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