In the third edition of this textbook each chapter is broken into short, manageable modules to help students learn at an ideal pace. The Math boxes review quantitative skills, offering you a chance to practice the maths you need to know to succeed. Module AP® Review questions, Unit AP® Practice Exams, and a full length cumulative AP® Practice test offer unparalleled, integrated support to prepare you for the real AP® Environmental Science exam. Written specifically for the AP® Environmental Science course, this text is designed to help you realise success on the AP® Environmental Science Exam and in your course by providing the built-in support you want and need.