00763nam a22002177a 4500001000400000003000600004005001700010008004100027020002200068040001000090082002500100100001900125245006800144260004800212300002600260500005100286650006600337650005900403650003700462650004600499342OCLRC20260729043617.0160413t        xxu||||| |||| 00| 0 eng d  a978-0-8160-6215-7  aOCLRC  aGR 551.48 D466h 2008  aDesonie, Dana.  aHydrosphere:bfreshwater systems and pollutions/cDana. Desonie  aNew York, New York:bChelsea House.,c2008.  a194 p.bill.;c24 cm.  aIncludes bibliographical references and index.  aWater- Pollution- environmental aspects- Juvenile literature.  aWater- Pollution- health aspects- Juvenile literature.  aFreshwater- Juvenile literature.  aWater- Purification- Juvenile literature.