Sandbars is created due to deposition.
Step-by-step explanation:
Sandbars are long, fine deposit below the surface of water. Also they are termed as the offshore bar, they are sometimes inundated, sometimes exposed ridges of sand, which is made by waves offshore from beach. Creation of the swirling turbulence of the waves which breaks the beach and digs a through in the sandy bottom. The top portion of the bar remains in water level by the plunge by the waves breaking over it.