Geography, asked by srushti71, 10 months ago

Why is the upper mantle called the
asthenosphere?

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Answered by xSahiBx

because The upper mantle is not uniform throughout. Below the lithosphere is a layer of upper mantle called the asthenosphere. This is made up rock that is fluid and can move.It is this fluidity that powers the movement of the tectonic plates of the Earth's crust..

Answered by Anonymous

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Because The upper mantle is not uniform throughout.Below the lithosphere is a layer of upper mantle called the asthenosphere.This is made up rock that is fluid and can move.It is this fluidity that powers the movement of the tectonic plates of the Earth's crust. therefore upper mantle is called.

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Why is the upper mantle called theasthenosphere?​

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Why is the upper mantle called the
asthenosphere?