Question

6. Upper mantle is partially molten. True or false
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Answer 1

Answer:

The mantle of the Earth is an essentially solid shell separating the metallic and partially molten core from the cooler rocks of the crust. Extending to a depth of some 2900 km, it accounts for 83% of the Earth's volume and 67% of its mass.

Answer 2

False, the Asthenosphere is the weak, plastic portion of Earth's mantle beneath the crust and upper mantle