The Wonders of our World Series offers young readers a lively and visually exciting introduction to the world around us and the forces at work shaping our planet and its future. Ten books in this series offer fascinating full-color photographs of examples from around the world to help illustrate: -- the devastating impact volcanoes, extreme weather, and earthquakes can have -- why the earth"s forests and waterways are in danger of destruction -- how the earth"s powerful internal forces produce rocks and minerals from the ordinary to the dazzling -- how mountains, deserts, and caves are formedOften the favorite hideout for smugglers and pirates, Caves features examples of these secret places from around the world. Take an intriguing look at: -- different kinds of caves -- how they are created -- various rock formations found inside -- animal and plant life -- how human beings have used caves for shelter and safety