Continental Crust Is Very Buoyant Compared with Oceanic Crust Because

Multiple Choice

Continental crust is very buoyant compared with oceanic crust because continental crust is

A) predominantly composed of basaltic rock that contains many air bubbles from successive lava flows.
B) predominantly composed of granitic rocks, whereas oceanic crust is composed of basaltic rocks.
C) thinner than the oceanic crust, forming a thin upper skin on the oceanic crust below.
D) very young and fresh.