Which is the world's highest mountain peak, and how high is it? Can you name and locate the world's longest river? The geology, geography, flora, and fauna of our planet Earth are the subjects of this fascinating volume, with answers to these questions and many more. Each title in Barron's Pocket Factbooks seroes focuses on one of the natural or social sciences. It presents fascinating, sometimes little-known facts about its subject, as well as answers to frequently-asked questions. These books make handy reference sources for students, freelance writers, and general readers who are interested in finding out the how, where, when, and why--the specific facts and details relating to science, technology, natural history, and social history. All titles in this series are filled with attractive color photos and illustrations.