Question
Difference between a tributary and distributary.
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Tributaries
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Distributaries
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When a small river joins the large or main river, it is called tributary.
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When a large river breaks into small river, it is called distributary.
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These are formed in mountains from glaciers, lakes etc.
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Distributary is formed by a large river.
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This occurs in the young age of the river.
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This occurs in old age of river.
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It does not change the course of the river.
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It changes the course of the river and ofter forms a delta.
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Example: Yamuna, Ghandak, Kosi, Ghaghora etc. Are tributaries of the Ganga.
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Example: Sunderbans delts which is formed by distributaries of Ganga and Brahmaputra.
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