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Our endangered planet / Hoff, Mary King
Author:
Hoff, Mary King
ISBN13:
9780822525004
9780822525073
9780822525097
LCCN:
91040960
94030899
Compare Title:
ourendangeredplanet
Call Number:
333.91
Our endangered planet
Hoff, Mary King
1995
An examination of the earth's atmosphere and the factors which threaten its stability, such as ozone loss and global warming.
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about Our endangered planet
Our endangered planet
Hoff, Mary King
1992
Describes the delicate ecological balance among all living things on land, the damage done by humanity in contributing to the extinction of various species, and ways of preventing further harm.
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about Our endangered planet
Our endangered planet
Hoff, Mary King
1991
Describes the global uses and abuses of groundwater and suggests ways to preserve this valuable resource.
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about Our endangered planet