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Earthwatch : earthcycles and ecosystems /

Examines how natural cycles and specific ecosystems work and suggests activities to protect the Earth from further damage by pollution and waste.

Bibliographic Details
Main Author:	Savan, Beth
Other Authors:	Cupples, Pat (Illustrator)
Format:	Book
Language:	English
Published:	Reading, Mass. : Addison-Wesley Pub. Co., [1992]
Subjects:	Environmental education > Activity programs > Juvenile literature. Biotic communities > Juvenile literature. Ecology. Biotic communities. Pollution. Conservation of natural resources. Science projects.

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