It is because heavier compounds settled at the core due to gravity while lighter ones floated above when the whole mass of earth was is molten state.
the crust and the core
crust. Mantle. Outer core. Core. Pie filling
idek what 2 say???
No, the core is hotter.
crust athenisphere mantle outer core innercore
No the crust covers earths surface
You may be referring to the geosphere.
idek what 2 say???
Crust, Mantle and Core
Geosphere
The crust, mantle, inner core, and outer core.
asthenosphere outer core inner core and crust