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Fresh water
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Discusses the physical and chemical properties of water, its biological importance to all forms of life, man's extensive uses but limited sources of fresh water, and the modern problems of water supply, pollution, and purification.
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Discusses the physical and chemical properties of water, its biological importance to all forms of life, man's extensive uses but limited sources of fresh water, and the modern problems of water supply, pollution, and purification.
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"Discusses the physical and chemical properties of water, its biological importance to all forms of life, man's extensive uses but limited sources of fresh water, and the modern problems of …"
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