source « Back to Glossary IndexThe point of origin of a stream of water, e.g. a reservoir. Related Articles: 1. RIVER AND RIVER BASIN2. THE SHAPE OF A RIVER3. LIFE IN A RIVER4. POLLUTION IN RIVERS6. SELF-PURIFICATION PROCESSES IN RIVERS« Back to Glossary Index Materials and Worksheets Share: admin Previous post ground-water recharge 26/10/2018 Next post water 26/10/2018