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.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.