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�������� ��������� ���������������� �������� ��������� �������� ��������� ���������������� �������� ��������� ������ � �������������������� ���������������� ��������������������������������� ������� JUNIOR WORLDMARK ENCYCLOPEDIA OF PHYSICAL GEOGRAPHY Editors Karen Ellicott and Susan Bevan Gall Graphics and Layout Steven Ollay Cover Design Cynthia Baldwin Associate Editors Robert J. Groelsema, Ph.D., Jeneen Hobby, Ph.D., Maura Malone, and Rosalie Wieder Project Editor Allison McNeill Composition Evi Seoud Imaging and Multimedia Christine O’Bryan Manufacturing Rita Wimberley ©2003 by U•X•L. U•X•L is an imprint of The Gale Group, Inc., a division of Thomson Learning, Inc. taping, Web distribution, or information storage retrieval systems—without the written permission of the publisher. U•X•L® is a registered trademark used herein under license. Thomson Learning™ is a trademark used herein under license. For permission to use material from this product, submit your request via Web at http://www.gale-edit.com/ permissions, or you may download our Permissions Request form and submit your request by fax or mail to: Cover photographs reproduced courtesy of Digital Stock (Matterhorn), Photodisc (Rice terraces, Luzon Island; Grand Canyon), and Corbis (Victoria Falls). For more information, contact: The Gale Group, Inc. 27500 Drake Rd. Farmington Hills, MI 48331-3535 Or you can visit our Internet site at: http://www.gale.com Permissions Department The Gale Group, Inc. 27500 Drake Rd. Farmington Hills, MI 48331-3535 ALL RIGHTS RESERVED No part of this work covered by the copyright hereon may be reproduced or used in any form or by any means— graphic, electronic, or mechanical, including photocopying, recording, Permissions Hotline: 248-699-8006 or 800-877-4253, ext. 8006; Fax: 248-699-8074 or 800-762-4058 While every effort has been made to ensure the reliability of the information presented in this publication, The Gale Group, Inc. does not guarantee the accuracy of the data contained herein. The Gale Group, Inc. accepts no payment for listing; and inclusion in the publication of any organization, agency, institution, publication, service, or individual does not imply endorsement by the editors or publisher. Errors brought to the attention of the publisher and verified to the satisfaction of the publisher will be corrected in future editions. Library of Congress Cataloging-in-Publication Data Junior worldmark encyclopedia of physical geography / Karen Ellicott and Susan Bevan Gall, editors. v. cm. Includes bibliographical references. Contents: v. 1. Afghanistan to Comoros -- v. 2. Congo, Democratic Republic of the to India -- v. 3. Indonesia to Mongolia -- v. 4. Morocco to Slovakia -- v. 5. Slovenia to Zimbabwe. ISBN 0-7876-6265-8 (set : hardcover) -- ISBN 0-7876-6266-6 (v. 1) -ISBN 0-7876-6267-4 (v. 2) -- ISBN 0-7876-6268-2 (v. 3) -- ISBN 0-7876-6269-0 (v. 4) -- ISBN 0-7876-6633-5 (v. 5) 1. Physical geography--Encyclopedias, Juvenile. [1. Physical geography--Encyclopedias.] I. Ellicott, Karen. II. Gall, Susan B. GB58.J86 2003 910’.02’03--dc21 2003009019 Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 Contents Volume 5 United States.........................................133 Uruguay.................................................141 Uzbekistan.............................................144 Vanuatu .................................................148 Vatican ..................................................152 Venezuela ..............................................155 Vietnam .................................................162 Yemen....................................................166 Zambia ...............