This up-to-date test preparation manual for the AP Environmental Science exam presents two full-length practice exams with all questions answered and explained plus an extensive subject review. Test topic reviews fall into three general categories: Earth Systems and Resources; The Living World; and Population. Each section is filled practice questions and quizzes with answers. The manual also presents an overview of the test, helpful test-taking strategies, and hundreds of diagrams and illustrations. New with the third edition is an enclosed CD-ROM that presents two additional full-length practice tests and feature automatic scoring.