Littering may be the first thing kids learn about pollution. Air and water pollution are likely next--but what are light and noise pollution, and do they also harm Earth? This book explores the many kinds of pollution in a kid-friendly way, explaining what causes the pollution, how it harms Earth, and offers some ways pollution can be slowed or stopped. Questions and picture puzzles throughout the main content engage readers with what they are reading, while fact boxes add even more information.