Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 46 - Data Analysis Activities - Page 837: 2



Work Step by Step

From 400,000 B.C. to 0 A.D the maximum carbon dioxide concentration is 300ppm. The lowest point in the 1980s was at around 330ppm.
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