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Earth (Isaac Asimov's 21st Century Library of the Universe)
Earth - Isaac Asimov's 21st Century Library of the Universe Author:Isaac Asimov, Richard Hantula An up-to-the-minute examination of the miraculous place we call home. Topics include Earth's origins, evolution, composition, waters, atmosphere, and magnetic field. Young readers will also learn about earthquakes, volcanic eruptions, global warming, the ozone layer, and the necessity of treating our fragile planet with care.