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About 97 percent of Earth's water is salt water. Less than 1 percent of Earth's water can be used for drinking and other human needs. Learn more in Oceans, Lakes, and Rivers, one of the titles in the Earth's Water series.

Produktbeschreibung
About 97 percent of Earth's water is salt water. Less than 1 percent of Earth's water can be used for drinking and other human needs. Learn more in Oceans, Lakes, and Rivers, one of the titles in the Earth's Water series.