Question

3 Which of the following layers
of the interior of the Earth is in Solid form and cool​

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. At the surface, the nickel-iron alloys and silicates are cool enough to be solid. In the upper mantle, the silicates are generally solid but localized regions of melt exist, leading to limited viscosity.

Answer 2

Answer:

the inner core is solid

Explanation:

outer core is in liquid

and the mantle is solid/plastic