What is the network of streams that drains an area of land?

The network of streams that drains an area of land is called a watershed or drainage basin. It encompasses all the land where precipitation collects and flows into a common outlet, such as a river, lake, or ocean. Watersheds are crucial for managing water resources, as they influence local ecosystems and water quality. Each watershed is defined by its topography and the flow of water through its streams and rivers.