Order the layers of the earth starting with the surface and moving in towards the center.

Question

To answer, arrange responses in the correct order. Select a response, navigate to the desired position and insert response at that position. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging or by using the up and down arrow keys.
Source

Mantle
Outer core
Inner core
Crust

Target

Answer 1

To order the layers of the Earth starting from the surface and moving inward towards the center, the correct sequence is:

1. Crust
2. Mantle
3. Outer core
4. Inner core

So the final ordered list is:

1. Crust
2. Mantle
3. Outer core
4. Inner core