Environmental Science for AP* (2nd Edition)

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

Chapter 3 - Module 7 - The Movement of Matter - AP Review Questions - Page 90: 1

Answer

(d) Nitrogen

Work Step by Step

Nitrogen fixation is the process by which organisms can convert nitrogen gas into ammonia. Nitrogen is fixed in the atmosphere by lightning or during combustion processes.
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