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Rivers are channels of freshwater that pass through the land and get their start from the overflow of a larger body of water such as a lake. It can also form from runoff of heavy rains or snow melting from mountains. Rivers can start of small and get wider when different streams merge.

It is formed by erosion. Water flows through the land. It erodes the and forming a narrow channel. Water flows in these channels. When many of these channels meet they form a river.

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They all start as run-off rain or snow-melt water! Lakes are incidental although a given river might be considered to start from a lake fed by a number of small tributaries.

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∙ 10y ago
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