Delta in river?

The term "delta" in a river refers to a landform that is created at the mouth of a river where it meets a body of water, such as a lake or ocean. Deltas are typically formed when sediment carried by the river is deposited at the mouth, creating a fan-shaped or triangular area of land. Deltas are important ecosystems that provide habitat for a variety of plant and animal species.

A river delta is a landform that forms at the mouth of a river where the river flows into an ocean, sea, lake, or another river. It is a triangular-shaped deposit of sediment that is formed by the accumulation of sediment carried by the river. The shape of a delta is formed by the interaction of the river's current and the wave action of the water body into which it flows.