Environmental Science for AP* (2nd Edition)

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

Chapter 3 - AP Environmental Science Practice Exam - Section 1: Multiple-Choice Questions - Page 99: 6

Answer

A

Work Step by Step

Producers are responsible for the production of oxygen by using photosynthesis. Recall that oxygen is just a waste product from producers in the process of making energy for themselves.
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