Renewing Earth's Waters

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Renewing Earth's Waters
ISBN: 0761440046
标签: 科学工程


Christine Petersen, \"Renewing Earth's Waters\"
Ma rshall Cave ndish Chil dren's Books | 2010 | ISBN: 0761440046 | 112 pages | PDF | 6,5 MB

Contents
One The Water Planet 7
Two Healthy Aquatic Ecosystems 20
Three The Clean Water Act 36
Four Our Impact on Water 56
Five Managing for the Future 75
Notes 85
Further Information 104
Bibliography 106
Index 108




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