Earth's Crust
Earth's crust is a hard layer of crust on the edge of the earth that we live on (The crust is the thin layer of blue that is shown in the picture) The earth's layer is about 25 miles thick beneath continents. The earths crust is light and brittle.
Earth's crust is about 30 km to about 50 km thick.
Earth's crust is about 30 km to about 50 km thick.