Delta (Geography)

A delta is a landform created at a river's mouth where it deposits sediment as it flows into a larger body of water like an ocean, sea, or lake. Over time, these sediments accumulate, forming a often fan-shaped or triangular area of land. Deltas are rich in nutrients, making them fertile regions for agriculture and diverse ecosystems. Their formation depends on factors like water flow, sediment supply, and the shape of the coastline. Well-known examples include the Nile Delta in Egypt and the Mississippi Delta in the United States.