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EP Ch 11

Surface water lakes, rivers, streams, percolates through ground to form groundwater, less than one percent of all water on Earth
Fresh water water has been diverted to areas to make them habitable, used to manufacture, dispose of waste, and generate power, mostly frozen in ice caps
Groundwater difficult to clean (deep in ground, pollutants cling to materials, recycling takes thousands of years),
Water treatment process Chlorine kills bacteria
Shortage of freshwater prevented by conserving water, education, new ways to produce freshwater
Water conservation use low flow showerheads and take short showers
Point source Pollution from a single source
Nonpoint source agricultural runoff
Pathogen disease causing bacteria, viruses, and parasitic worms
Watershed large area of land drained by a river, largest in US is Mississippi River
Large cities get water from rivers and lakes
Phosphates may cause fish to suffocate and die
Plastic trash eaten by turtles, strangle birds, entangle sea mammals
Dams less built because of environmental considerations, create energy, change land behind because of a change in flow
Water pollution magnifies over time in food chains
Thermal pollution decreases oxygen
Reservoir artificial lake created by a dam
Aquifer underground rock formation that holds water
Recharge zone area of land through which water percolates to be stored as groundwater
Desalination removes salt from salt water
Biomagnification accumulation of pollutants at successive levels of the food chain
Eutrophication nutrients increase in a lake causing oxygen levels to decrease
Water cycle continuous movement of water between the Earth and atmosphere
Ogallala Aquifer supplies 1/3 of all the groundwater in the US
Well hole that is dug to reach groundwater
Industrial water use highest in Europe and America
Potable water that is safe to drink
Xeriscaping landscaping with minimal water use
Water Pollution introduction of chemical, physical, or biological agents into water that degrade the quality
Ocean Pollution mainly from land activities
Created by: evroman