The Earth's crust is divided into continental crust and oceanic crust. Underneath the crust and attached to it is the uppermost brittle mantle, which, together with the crust is referred to as the lithosphere.
It is the mantle.
Yes, the crust is the top layer. It continually changes.
Crust
half of earths layer
crust
The earth thinnest layer is the crust.
The crust is the thinnest layer of the Earth.
The crust
The crust.
The crust, more specifically the lithosphere.
continental crust
mantle