River delta

A river delta is a landform formed where a river meets a slower body of water, such as an ocean or a lake. As the river flows into this larger body, its current slows down, causing the flow of water and sediment to spread out and deposit. Over time, these deposits build up, creating a land area with multiple channels, islands, and wetlands. Deltas are key regions for biodiversity and human activity, often sustaining rich ecosystems and supporting agriculture and cities. Examples include the Mississippi River Delta and the Nile Delta.