The process of the earth crust being squeezed together is an example of plate tectonics and physical activity.
The crust being squeezed and being pushed upward, sounds like a convergent margin where the land collides together. It forms a ridge either on the ocean floor or a mountain on the land.
So, in short some areas of the earth , the crust is squeezed and pushed upward. this is a constructive process in that it directly forms Mountains.
