Environmental Science for AP* (2nd Edition)

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

Chapter 14 - Module 41 - Wastewater from Humans and Livestock - AP Review Questions - Page 490: 2



Work Step by Step

If oxygen percentages in a certain area are very low, then we classify these as dead zones.
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