How is the composition and the density of the continental crust different from the rest of the lithosphere?

The composition and the density of the continental crust and Lithosphere is the thick and relatively low density. Also, continental crust rises higher on the mantle than oceanic crust, which sinks into the mantle to form basins. When filled with water, these basins form the planet's oceans. The lithosphere is the outermost mechanical layer, which behaves as a brittle, rigid solid.