What special quality does the asthenosphere have that allows the crust to float on it and be moved around ?

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asked Jan 23, 2021 198k views

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KGhatak · Answer 1 · 2021-01-28T20:09:10+0000

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The tectonic plates do not slowly drift over time because they are floating on a layer of liquid rock. They drift because they are sitting on a layer of solid rock (the upper mantle or "asthenosphere") that is weak and ductile enough that it can flow very slowly under heat convection, somewhat like a liquid.

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What special quality does the asthenosphere have that allows the crust to float on it and be moved around ?

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