Polluted waters /
Jennifer Stefanow.
- Chicago, Ill. : Raintree, 2004.
- 48 p. : col. ill., col. map ; 26 cm.
- Green alert! .
Includes bibliographical references (p. 47) and index.
Introduction -- Causes of water pollution -- Effects on plants and ecosystems -- Effects on animals and people -- Protection and conservation -- What happens next?