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Added February 24, 2008
 cosmosbis
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All about water - the U.S. Geological Survey's Water Science for Schools information site www.cosmosbis.com/water moreAll about water - the U.S.
Geological Survey's Water
Science for Schools
information site
www.cosmosbis.com/water
Tags water, use, quality, hydrology, lake, river, stream, cycle, hydrologic, precipitation, reservoir, ground, surface, flood, groundwater, surfacewater, glacier, aquifer, saline, desalination, dam, discharge, irrigation, freshwater, pictures, pollution, U.S., Geological, Survey, USGS, rain, snow, rainfall, flow, wastewater, sewage, sinkhole, tributary, pH, sediment, table, watershed, runoff, erosion
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