Trees are a valuable natural resource. People depend on trees for food, and animals depend on trees for food and shelter. But most important, we depend on trees because they add oxygen, a gas we all need, to the air. While trees give us many wonderful products, we must also protect them because we can't live without them.

 

There are 32 pages in this book. This book was published 1994 by HarperCollins Publishers .

Patricia Lauber is the author of the Around-the-House series and more than 125 other books for young people. Her Volcano: The Eruption and Healing of St. Helens was a Newbery Honor Book. She lives with her husband and two cats, Beemer and MeToo, in New Canaan, Connecticut.