What are the four primary zone of earths interior ?

The four main parts of the earth's interior are the crust, mantle, outer core, and inner core. 
The crust is the outer most layer, containing the dirt, and everything on Earth's surface. 
The mantle is composed of soft putty like rock.
The outer core is composed of molten Nickel and Iron.
The inner core is a solid mass of iron. 

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