Keeping water clean / McLeish, Ewan

ISBN13: 
9780817249359
Compare Title: 
keepingwaterclean
Call Number: 
363.73

Keeping water clean

1998
Provides information about Earth's water supplies, tracing the cycle by which the water moves around the world; discusses the damage that has been done to water by people and industry; and looks at efforts to eliminate water pollution.
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