Select the statement that best describes how the process of plate tectonics circulates materials between the asthenosphere and the lithosphere.
a. Some lithosphere becomes asthenosphere at mid-ocean spreading centers and reenters the lithosphere at subduction zones.
b. The materials that form the asthenosphere never mix with the materials that form the lithosphere.
c. Some asthenosphere becomes lithosphere at mid-ocean spreading centers and reenters the asthenosphere at subduction zones.

Question

26-01-2022
Geography

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Select the statement that best describes how the process of plate tectonics circulates materials between the asthenosphere and the lithosphere.
a. Some lithosphere becomes asthenosphere at mid-ocean spreading centers and reenters the lithosphere at subduction zones.
b. The materials that form the asthenosphere never mix with the materials that form the lithosphere.
c. Some asthenosphere becomes lithosphere at mid-ocean spreading centers and reenters the asthenosphere at subduction zones.

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jayilych4real jayilych4real · Answer 1 · 2022-02-08T14:31:35+01:00

The statement that best describes how the process of plate tectonics circulates materials between the asthenosphere and the lithosphere is:

A. Some asthenosphere becomes lithosphere at mid-ocean spreading centers and reenters the asthenosphere at subduction zones.

Lithosphere

This refers to the outer part of the Earth's crust which is rigid and is made up of three main layers which are: mantle, crust and core.

With this in mind, we can see that during plate tectonics which entails the movement of materials between the asthenosphere and the lithosphere, some of the asthenosphere becomes asthenosphere at mid-ocean spreading centers and reenters the lithosphere at subduction zones.

Therefore, the correct answer is option A