The water cycle (article) | Ecology | Khan Academy
https://www.khanacademy.org/science/biology/ecology/biogeochemical-cycles/a/the-water-cycle
OverviewKey pointsWater: Why does it matter?The water cycleThe water cycle drives other cycles.•The vast majority of Earth's water is saltwater found in oceans. Only a tiny fraction is readily ac…•Water found at the Earth's surface can cycle rapidly, but much of Earth's water lies in ice, oceans, and underground reservoirs; this water cycles slowly.•The water cycle is complex and involves state changes in water as well as the physical movem…•Groundwater is found underground between soil particles and in cracks of rocks. Aquifers are groundwater reservoirs often tapped by wells.See more on khanacademy.org •The vast majority of Earth's water is saltwater found in oceans. Only a tiny fraction is readily ac…•Water found at the Earth's surface can cycle rapidly, but much of Earth's water lies in ice, oceans, and underground reservoirs; this water cycles slowly. •The water cycle is complex and involves state changes in water as well as the physical movem…•Groundwater is found underground between soil particles and in cracks of rocks. Aquifers are groundwater reservoirs often tapped by wells.
•The vast majority of Earth's water is saltwater found in oceans. Only a tiny fraction is readily ac…•Water found at the Earth's surface can cycle rapidly, but much of Earth's water lies in ice, oceans, and underground reservoirs; this water cycles slowly.
•The water cycle is complex and involves state changes in water as well as the physical movem…•Groundwater is found underground between soil particles and in cracks of rocks. Aquifers are groundwater reservoirs often tapped by wells.
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