GEOLOGY

Detailed explanation-1: -A watershed is an area of land that drains rainfall and snowmelt into streams and rivers.

Detailed explanation-2: -A watershed is the region draining into a river, river system, or other body of water and may also be referred to as a drainage basin. How a watershed is shaped will determine how it drains, where flooding occurs, and how water quality is affected.

Detailed explanation-3: -A watershed includes the network of streams that drains that surface land area, and the groundwater and aquifers located underground that contribute water to those streams.

Detailed explanation-4: -For example, the watershed of a lake would include not only the streams entering that lake but also the land area that drains into those streams and eventually the lake. Drainage basins generally refer to large watersheds that encompass the watersheds of many smaller rivers and streams.

Detailed explanation-5: -A river drainage basin is an area drained by a river and all of its tributaries. A river basin is made up of many different watersheds. A watershed is a small version of a river basin. Every stream and tributary has its own watershed, which drains to a larger stream or wetland.