The outter core is liquid.
The reason that the inner core is a solid and the outter core is a liquid is because the inner core is the greatest amount of pressure from the other layers. Why the outter core is a liquid is because inside of it is metal that just flows around in there.
the outter core thikness is 200km.
yes
no
Earth's outer core is stronger than the inner core.
Outter core
the outter core
There is the mantle, inner mantle, crust, inner and outter, and also there is a inner and outter core.
inner core outter core mantle and crust
inner core outter core mantle and crust
a inner core is a dense ball of solid metal a outer core is a layer of molten metal surrounding the inner core