When children take a trip to the countryside, some of them are rowdy and careless, breaking tree branches and scattering trash. But if everyone acted that way, there would soon be no trees, no birds, and the fields would be ugly and unsafe for both animals and people. Part of every child's development involves asking questions. Today, some of the most important questions kids ask are related to the natural environment. The enlightening and entertaining four-book "Why Should I?" series demonstrates the importance of protecting nature. Books present brief, entertaining stories that answer children's questions and feature amusing color illustrations on every page. A note at the back of each book is for parents and teachers, suggesting ways to use these books most effectively.