Answer: The asthenosphere is located approximately 80-200 km below the Earth's surface.
Explanation: The asthenosphere is located in the mantle of the Earth, which lies below the Earth's crust. More specifically, the asthenosphere is located in the upper mantle, at a depth range of approximately 80-200 km (50-120 miles) below the Earth's surface.The mantle itself is also divided into other layers, including the upper mantle, the transition zone, and the lower mantle. The asthenosphere is part of the upper mantle and is characterized by its viscous, plastic-like behavior, which allows for the movement of tectonic plates.Therefore, the asthenosphere is located approximately 80-200 km below the Earth's surface.