Select the sequence that lists Earth's layers from LEAST dense to MOST dense.
A. mantle, crust, core
B. core, mantle, crust
C. crust, mantle, core
D. mantle, core, crust
C, because the crust is closer to the surface. Then comes the upper and lower mantles, or just mantle as said on here. The core is then the most dense. Hope I helped!