Question

How are the composition and structure of Earth’s layers different as you go deeper into Earth?

Answer 1

The inner core is solid, the outer core is liquid, and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases.

Answer 2

The inner core is solid, the outer core is liquid, and the mantle is solid/plastic.

Step-by-step explanation:

This is due to the relative melting points of the different layers and the increase in temperature and pressure as depth increases.