Answer: Lithosphere
Step-by-step explanation:
Lithosphere is the layer of the earth that is present at the outermost shell.The rocks that is present in the crust and the mantle upper layer makes it rigid in mechanical manner.It makes it behave as the solid layer which is brittle.
Lithosphere is present in the range of almost 50 km to 160 km in terms of depth on the surface of the Earth.It's main purpose is support and help the terrestrial organism and components by providing surface.