drainage basin

A drainage basin, also known as a watershed, is an area of land where all the rainwater or snowmelt collects and flows into a common outlet, such as a river, lake, or ocean. It is defined by the natural ridges or hills surrounding it, which direct the water to the lowest point. The size and shape of a drainage basin can vary widely. Understanding drainage basins is crucial for managing water resources, predicting flooding, and preserving ecosystems, as they reflect how water moves through the landscape and impacts the environment.