The asthenosphere extends from a depth of about __________ km down to a depth of about __________ km below the surface of the Earth.

Question

Quizplus · Accepted Answer

The asthenosphere is a region of the Earth's upper mantle that lies beneath the lithosphere and extends from about 100 km to 350 km below the Earth's surface. It is characterized by relatively low viscosity and some fluidity, which allows for the tectonic plates of the lithosphere to move atop it.

The Asthenosphere Extends from a Depth of About __________ Km