The continental crust is up to 70 km thick.
Step-by-step explanation:
Upto 40% of the earth is made up of continental crust. Sedimentary, igneous and metamorphic ricks make up the continental crust. It makes up the upper layer of continents and shallow seabed areas near the shores.
Continental crust is thicker than oceanic crust with a thickness ranging from 25 km to 70km continental crust makes up 70% of earth’s volume and is usually located above sea level with a few exceptions like the Zealand continental crust region which is largely under water.