An '''Watershed''' is a [[ecosystem]] where all [[water]] runoff drains into a single river or stream.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia
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A '''watershed''' is a landform from which all [[water]] runoff drains into a single [[river]] or [[stream]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia