Question

1. how does the thickness of continental crust compare to oceanic crust? continental crust is thinner. oceanic crust is thicker. continental crust is thicker and less dense. oceanic crust is thicker and denser.

Explanation:

To solve this, we recall geological facts: Continental crust is made of less - dense rocks (like granite) and has a thickness of about 30 - 70 km. Oceanic crust is made of denser rocks (like basalt) and is thinner, around 5 - 10 km. So continental crust is thicker and less dense than oceanic crust.

Answer:

C. Continental crust is thicker and less dense.