How does heat flow within earth change the earths surface

How does all this relate to the motion of the plates on Earth's surface? The movement of heat by convection in the asthenosphere causes the rock of the mantle to slowly move in huge streams. The solid (but brittle) rock of the lithosphere is resting directly on top of the solid (but soft) rock of the asthenosphere.

Explanation:

How does all this relate to the motion of the plates on Earth's surface? The movement of heat by convection in the asthenosphere causes the rock of the mantle to slowly move in huge streams. The solid (but brittle) rock of the lithosphere is resting directly on top of the solid (but soft) rock of the asthenosphere.

. mm