Why is the air dirty? /
by Isaac Asimov.
- A Gareth Stevens Children's Books ed.
- Milwaukee : G. Stevens Children's Books, c1991.
- p. cm.
- Ask Isaac Asimov .
- Asimov, Isaac, 1920- Ask Isaac Asimov .
Includes bibliographical references and index.
A simple discussion of the causes and effects of air pollution and some ways to help prevent it.
083680743X
91050360 /AC
Air--Pollution--Juvenile literature. Air quality management--Juvenile literature. Air--Pollution. Pollution.