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

Question

Question

This question was previously asked in

TNPSC Group 2: Official PYP 2016

Answer 1

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