What landforms is built up by the deposition if sediment at the ocean?

Landforms built up by the deposition of sediment at the ocean include deltas, barrier islands, and beaches. Deltas form where rivers deposit sediment as they enter the ocean, creating fertile areas. Barrier islands are elongated landforms that develop parallel to the coast, often formed by the accumulation of sand. Beaches are created through the continuous deposition of sand and other sediments along Coastlines, providing dynamic environments shaped by wave action.