The part of the earth’s interior which is known as Asthenosphere is

The Correct Solution is  Upper Mantle

Key Points

• The asthenosphere is a part of the upper mantle just below the lithosphere.
• The asthenosphere lies below the lithosphere, between approximately 80 and 200 km below the surface, and extends as deep as 700 km.
• The upper part of the asthenosphere is the great rigid and brittle lithospheric plates of the Earth's crust move.

Important Points

• SIMA is found next to the SIAL Layer and it made up of Silica and Magnesium
• The lower mantle is the region inside the Earth that resides beneath the upper mantle.
  • In this region, there is much greater pressure than in the upper mantle
• The outer Core is the Third layer of the Earth’s surface and it’s mostly composed of liquid iron and nickel