Contrast continental crust and oceanic crust in terms of (a) thickness, (b) composition and (c) density.
Select one:
a.
Continental crust is thicker, lower in silica, and less dense than oceanic crust.
b.
Continental crust is thicker, richer in silica, and less dense than oceanic crust.
c.
Continental crust is thinner, richer in silica, and less dense than oceanic crust.
d.
Continental crust is thicker, richer in silica, and more dense than oceanic crust.