Biology 2010 Student Edition

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

Chapter 6, Humans in the Biosphere - Assessment - 6.4 Meeting Ecological Challenges - Understand Key Concepts/Think Critically - Page 183: 22

Answer

d. Ozone hole

Work Step by Step

The ozone hole is caused by CFCs which trigger a chain reaction of ozone destruction.
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