What role does the asthenosphere play in the movement of tectonic plates

The asthenosphere in plate tectonic theory. The asthenosphere is now thought to play a critical role in the movement of plates across the face of Earth's surface. ... Some observers have described the asthenosphere as the 'lubricating oil' that permits the movement of plates in the lithosphere.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.

a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.