What Is Hydraulic Action In Geography?

Hydraulic action is where water and air is forced into cracks in the rocks. The parcels of air are compressed by the surging of water therefore when the wave retreats the air expands. As a result it weakens the joints causing it crack and the rock to shatter.

This is the action of running water. The force of the water widnes crack in the rocks and loosens fragments.

Hydraulic action is the process of breaking rocks and draging them away from the bed and banks of a river by the force of the running water itself.

Hydraulic action happens when the sheer force of water removes material