Question

The part of the mantle called the _____ is made of soft rock that bends like plastic.

Answer 1

As a result, the part of the mantle just beneath the lithosphere is less rigid than the rock above. Like road tar softened by the heat of the sun, thispart of the mantle is somewhat soft—it can bend like plastic. This soft layer is called the asthenosphere (as then uh sfeer).

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