Which of the following is a difference between continental and oceanic crust? a) oceanic crust is older than continental crust b) continental crust has a higher density than oceanic crust. c) oceanic crust undergoes subduction, while continental crust does not. d) continental crust is made mostly of basalt, while oceanic crust is made of low-density rocks.

The correct option is C) continental crust does not undergo subduction while oceanic crust.

The oceanic crust comprises of basalt while continental crust comprises of granite. The oceanic crust is much thinner than continental crust. While density of oceanic crust is more than continental crust. This is the reason the continental crust are floating while oceanic crust are not that buoyancy. Geologically, the continental crust is older than oceanic crust.

The crust is classified into continental crust and oceanic crust. The outer layer of the earth is crust which is floating on the molten mantle.