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Rivers and Drainage Basins
Rivers and drainage basins

Rivers collect and transport water and sediments from higher to lower areas of the land surface, and, in most cases, eventually to the sea. Rivers are, however, not simply linear conveyor belts; they exist as part of wider networks that drain the land surface comprising their drainage basins. These drainage basins are structural (geological) features of the landscape, which define the area, or catchment for the collection of water and sediments, and which are separated (in all but very few instances) topographically from other basins by drainage divides or watersheds. Particularly in North America, the term watershed is frequently used as synonymous with the drainage basin, and the terms such as river basin are also commonly deployed.

Drainage basins, ...

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