The Importance of Rivers
What is a river? A river is freshwater flowing across the surface of the land, usually to the sea. Rivers flow in channels. The bottom of the channel is called the bed and the sides of the channel are called banks.
Rivers begin at their source in higher ground such as mountains or hills. Rain water or melting snow collects and forms tiny streams. When one stream meets another and they merge together, the smaller stream is known as a tributary. It takes many tributary streams to form a river. As the river flows downstream, it gains more water from other streams, rivers, springs, added rainfall and other water sources. The majority of rivers eventually flow into a larger body of water such as an ocean, sea or large lake. The end of a river is called the mouth...
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