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A river is a natural flowing watercourse, usually a freshwater stream, flowing on the Earth's land surface or inside caves towards another waterbody at a lower elevation, such as an ocean, sea, bay, lake, wetland, or another river.
5 days ago · Learn about rivers, natural streams of water that flow in channels with defined banks. Explore their formation, features, functions, and global distribution with Britannica.
Oct 19, 2023 · Learn about the features, functions, and uses of rivers, the ribbon-like bodies of water that flow downhill from gravity. Explore how rivers form, change, and support life and human activities.
The Singapore River is a river that flows parallel to Alexandra Road and feeds into the Marina Reservoir in the southern part of Singapore. The immediate upper watershed of the Singapore River is known as the Singapore River Planning Area, although the western part of the watershed is classified under the River Valley planning area.
- Anatomy of a River. No two rivers are exactly alike. Yet all rivers have certain features in common and go through similar stages as they age. The beginning of a river is called its source or headwater s. The source may be a melting glacier, such as the Gangotri Glacier, the source of the Ganges River in Asia.
- Rivers Through History. Rivers have always been important to people. In prehistoric times, people settled along the banks of rivers, where they found fish to eat and water for drinking, cooking, and bathing.
- Rivers of Asia. Asia’s longest and most important river is the Yangtze, in China. It flows from the Dangla Mountains, between Tibet and China’s Qinghai province.
- Rivers of South America. The strength of the Amazon River in South America dwarf s all other rivers on the planet. The amount of water flowing through the Amazon is greater than the amount carried by the Mississippi, the Yangtze, and the Nile combined.
Learn about the importance, diversity, and challenges of rivers for human and aquatic life. Explore stunning images and stories of rivers around the world, from the Colorado to the Yangtze.
Learn how physical and biological features vary along the length and width of rivers and streams, and how they influence the diversity and function of aquatic communities. Explore the river continuum concept, the fish zonation concept, and the local scale structure of pools, riffles, and meanders.
