Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 6, Humans in the Biosphere - 6.1 - A Changing Landscape - 6.1 Assessment - Page 157: 2c

Answer

Wetlands act as a barrier between water and agricultural / forest land. If there are no wetlands, water had to be stopped manually.

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