Consider the density of the continental crust and the oceanic crust.Which of the following is correct?
A)Continental crust is less dense than oceanic crust and composed primarily of basalt.
B)Continental crust is denser than oceanic crust and composed primarily of granite.
C)Oceanic crust is less dense than continental crust and is composed primarily of granite.
D)Oceanic crust is denser than continental crust and is composed primarily of basalt.

Question

Quizplus · Accepted Answer

The correct choice is D. Oceanic crust is denser than continental crust and is composed primarily of basalt. The average density of oceanic crust is about 3 grams per cubic centimeter, whereas the average density of continental crust is about 2.7 grams per cubic centimeter. Additionally, oceanic crust is predominantly made up of basalt, whereas continental crust is composed primarily of granite.

Consider the Density of the Continental Crust and the Oceanic