The continental crust covers ____ of the earth’s surface a. 40% b. 50% C. 60% d. 70% ​


  1. Answer:

    a. 40%


    The continental crust covers 40% of the Earth’s surface.

    At 25 to 70 km, continental crust is considerably thicker than oceanic crust, which has an average thickness of around 7–10 km. About 40% of Earth’s surface area and about 70% of the volume of the Earth’s crust is the continental crust. Most continental crust is dry land above sea level.


Leave a Comment