World Book, Inc text ph Chicago World Book c2009 monographic eng

print

64 p. : col. ill. ; 26 cm. "General overview of mountain, desert, and grassland ecosystems, including an exploration of disturbances these ecosystems face due to human interference and climate change; and current conservation and reclamation efforts. Features include fact boxes, sidebars, activities, glossary, list of recommended reading and Web sites, and index"--Provided by publisher. Includes index. Mountains Juvenile literature Deserts Juvenile literature Grasslands Juvenile literature GB512 M68 2009 333.95/16 M928 2009 9780716614036 260722 20260722134936.0