Answer:
The inner core is the hottest layer of Earth
It is like magma from a volcano
The outer core is the layers that protects the inner core
This is one of the thick layers on the earths core.
The crust is what we stand on everyday.
This is what most moves when I earthquake happens
And 2 and 3 are layers that protect each other ..
These layers are after the outer core they are like extra protection for the inner core .