Question

describe the layers of the interior of the earth and their chemcial composition.
This is a long answer question

Answer 1

Answer:

The layers of different chemical composition outward from the centre of the Earth are as follows: core, mantle, and crust. At the centre is the densest of the three layers, the core. It is mostly metallic iron with small amounts of nickel and other elements. The outer boundary of core is at a depth of 2,900 kilometres.

Answer 2

Answer:

The layers of different chemical composition outward from the centre of the Earth are as follows: core, mantle, and crust. At the centre is the densest of the three layers, the core. It is mostly metallic iron with small amounts of nickel and other elements. The outer boundary of core is at a depth of 2,900 kilometres.