How is a river formed Make sure you include the term head-water and mouth in your explanation?

A river is formed through the collection and flow of water from various sources, such as rainfall, melting snow, and groundwater, which converge at a headwater, the river's starting point. As the water flows downstream, it gathers more water from tributaries and surface runoff, carving out a channel through the landscape. Eventually, the river reaches its mouth, where it empties into a larger body of water, such as an ocean, sea, or lake. This continuous movement of water shapes the river's course and surrounding ecosystem.