a soild sphere in the middle of the fluid core such as ironickel core of the earth
the middle sphere is between the asthenosphere and the outer core!
the middle sphere is between the asthenosphere and the outer core!
The geosphere.
The Core...
the outer core is a sphere made up of mainly iron and nickel
The geosphere.
the core's composition of nickel and iron
The thickness of the inner core is 1,200 km. 1,200 km being the radius of the sphere known as the inner core.
In more complex diagrams they show that we have an outer core. actually we do have but not for any chemical properties but for the slight difference in temperature. It helps in forming the magnetic sphere around us.
inner core
inner core