A river is a natural waterway that transports water through a landscape from higher to lower elevations. A river is a component of the water cycle. The water within a river is generally collected from precipitation through surface runoff, groundwater recharge (as seen at baseflow conditions / during periods of lack of precipitation) and release [...]
Pollution is the introduction by man into the environment of contaminants that cause harm or discomfort to humans or other living organisms, or damage the environment. Pollution can be in the form of chemicalsubstances, or energy such as noise, heat, or light. Pollutants can be naturally occurring substances or energies, but are considered contaminants when [...]
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