This updated test preparation manual presents: A brand-new diagnostic test to pinpoint the test taker"s strengths and weak areas Two full-length practice exams with all questions answered and explained A detailed review of all test topics, supplemented with practice questions and quizzes with answers An overview of the test plus helpful test-taking strategies Hundreds of diagrams and illustrations BONUS PRACTICE TEST: Students who purchase this book will also get FREE access to one additional full-length online AP Environmental Science practice test with all questions answered and explained.