Environmental Science for AP* (2nd Edition)

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

Chapter 15 - Module 50 - Indoor Air Pollution - AP Review Questions - Page 545: 2

Answer

C

Work Step by Step

Indoor air pollution of carbon monoxide is the result of malfunctioning exhaust systems on household heaters, most typically natural gas heaters. The outdoor air pollution of carbon monoxide is due to the incomplete burning of any kind, commonly emitted from vehicles.
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