Question

What is the difference between the inner and the outer core?

Answer 1

Inner core

1. The innermost layer of the Earth.
2. A solid ball of iron and nickel.
3. It has a radius of 1220 km.

Outer core

1. Surrounds the inner core.
2. Made of liquid iron and nickel.
3. It has a radius of Approx. 2300 km.