The third planet from the sun is the only one on which life is known to exist. Its position in the solar system makes Earth habitable, allowing the planet to maintain water, the key to life. This KidHaven volume examines the many aspects of Earth that conspire to sustain life on the planet.
About David M Haugen
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Published October 23, 2001
by KidHaven Press.
Education & Reference, Nature & Wildlife, Children's Books, Science & Math.