672522
9780737709384
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.David M Haugen is the author of 'Eyes on the Sky - Earth', published 2001 under ISBN 9780737709384 and ISBN 0737709383.
[read more]