What is the average thickness of the continental crust of the earth?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 35km.
The average thickness of the continental crust of the Earth is approximately 35 to 40 kilometers (about 22 to 25 miles). This thickness varies depending on the location; it can be thicker in mountainous regions and thinner under sedimentary basins. The continental crust is composed mainly of granite and other less dense rocks, contrasting with the denser oceanic crust that underlies the ocean floors. This variation in thickness plays a crucial role in Earth's geological processes.