Classified in Geology

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-more freshwater underground than in lakes & rivers
-97% of Earth's water is saltwater
-2% of all water is freshwater in polar ice caps
-less than 1% of freshwater is useable
-watershed- land area that funnels water downhill
-river basin- a group of watersheds running together
-estuary- are where freshwater and saltwater meet
-aquifer- underground water supply
-upwelling- cold water, more nutrients, more oxygen
-satellite & infrared show where upwellings are
-more oxygen in cold water than in warm water
-water quality- how clean the water is
-turbidity- cloudiness of water
- ? Turbidity = ? Oxygen
-deep ocean- cold, dark, high pressure

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