What is river? And its characterstics of river ? And where it is usen?
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Every river is part of a larger system—a watershed, which is the land drained by a river and its tributaries. Rivers are large natural streams of water flowing in channels and emptying into larger bodies of water. This diagram shows some common characteristics of a river system.
There are three stages of river early, young and old and it could be observed in the same river at different stages. The first is early stage. At this stage, the river get its supply through streams, lakes, or combination. The flow is fast and the water continuously erodes the lower bed/surface.
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water.
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River is the flowing water in particular path
Or
Water in motion with great velocity is River
Characterstics of River
Streams or rivers form when water that does not find an underground aquifer
• Water in streams and rivers is in constant motion.
• As river and stream water travels, it shapes its own channel by forcing itself into rock cracks.
Uses of water
The public supply, domestic, and livestock categories are the only categories to show continual increases from 1950 to 1995, largely because of continual increases in population. The increase of 4 percent in public supply withdrawals from 1990 to 1995, compared to the population increase of 7 percent served by public supply, indicates that conservation programs have been effective in lowering public supply per capita use from about 184 gallons per day (GPD) in 1990 to 179 GPD in 1995.
More water continues to be withdrawn for thermoelectric power generation than for any other category. Withdrawals for thermoelectric power generation peaked in 1980 at 210,000 MGD and fluctuated around 190,000 MGD during 1985, 1990, and 1995.
Industrial withdrawals declined from 1980 to 1995 after remaining about the same for the years reported between 1965 and 1980. Lower industrial withdrawals are the result of new industries and technologies that require less water, improved plant efficiencies, increased water recycling; changes in laws and regulations to reduce the discharge of pollutants; and conservation measures.
Total irrigation withdrawals were about the same during the period from 1955 to 1960, then steadily increased from 1965 to 1980, and gradually decreased from 1980 to 1995. Irrigation application rates vary from year to year and depend on annual rainfall, surface water availability, energy costs, farm commodity prices, application technologies, and conservation practices. Declining application rates are the result of more efficient irrigation systems and techniques. Also, application rates in the more humid eastern United States, where irrigated acreage continues to increase, tend to be lower than in the arid western United States.
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