the inner mantle is different than the outer mantle because the inner mantle is hotter than the outer mantle.
i think the inner mantel because it is closer to the core. but checke in the internati
the upper-mantle rocks are heavier while the lower mantle rocks are semisolid like melted plastic
The Asthenospheric mantle and the Inner mantle are made up of solid rock and liquid rock.
layers of the earth