Hydraulic action refers to the ability of flowing water to pick up and move rock and sediment.

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Hydraulic action is a process of erosion by which flowing water can dislodge and move sediment and rock. It occurs when the force of the water is strong enough to detach the particles from the bed or bank of a stream or river. This process is particularly effective during flood events, when water levels and velocities are high.

Hydraulic Action Refers to the Ability of Flowing Water to Pick