Environmental Science for AP* (2nd Edition)

Published by W. H. Freeman
ISBN 10: 1464108684
ISBN 13: 978-1-46410-868-6

Chapter 2 - AP Environmental Science Practice Exam - Section 1: Multiple-Choice Questions - Page 59: 11



Work Step by Step

The answer is D because it is proven that there is a greater input of carbon dioxide than there is an output of it.
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