Barron's AP Environmental Science, sixth edition version offers the same in-depth review of detailed test topics and practice exams as the print edition. It includes a new diagnostic test that pinpoints the test taker's strengths and weak areas, an overview of the course, plus helpful test-taking tips and strategies, and hundreds of diagrams and illustrations to aid in understanding course material. This e-Book contains hundreds of hyperlinks that can be used to help you navigate through content, bring you to more helpful resources, and allow you to click between all questions and answers in the diagnostic exam, practice exercises, and two full-length practice tests. It also contains a link that will bring you to an additional full-length online practice exam.