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Аннотация: Of all substances that are necessary to life as we know it on each, water is by far the most important, the most familiar, and the most wonderful; yet most people know very little about it. Life and water on this planet are inseperable. Life began in the premeval sea. The great majority of living things are still in the oceans. Land devoid of water is devoid of life. Water is the greatest of solvents. Protoplasm, the bearer of life, is a solution or suspension in water. Our bodies are more than three-fourths water, and our world is what water has made it. The life and welfare of man are inextricably bound to water.
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