On land water is stored on the surface as lakes and rivers. Each river is contained within its own drainage basin – the area of land drained by a river and its tributaries.
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watershed.
The boundary dividing one drainage basin from another -usually a ridge of high land.
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Tributary
A tributary is a small river which joins the main river in a drainage basin.
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Confluence
A confluence is the point at which the tributary joins the main river.
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Mouth
Where the river flows into the sea, or sometimes a lake.
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Source
The upland area where the river begins.
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Catchment Area
The area from which water drains into a particular drainage basin.
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Card 2
Front
watershed.
Back
The boundary dividing one drainage basin from another -usually a ridge of high land.
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