Question

If the asthenosphere cooled and stopped flowing. How would you expect the movement of tectonic plates in the lithosphere to change? The tectonic plates would _________?

Answer 1

If the asthenosphere cooled and stopped flowing. The movement of tectonic plates in the lithosphere  changes. The tectonic plateswould move  less than 2 cm a year.
> The asthenosphere is the highly viscous, mechanically weak and ductilely deforming region of the upper mantle of the Earth.