Answer
(c)
Work Step by Step
$O + O_2 \rightarrow O_3 + UV-C \rightarrow O + O_2$
$\text{energy} + 2O + O_2 \rightarrow O_3$
$i = O$
$ii=O_2$
$iii=\text{energy}$
$iv=O_3$
The answer is (c).
Environmental Science for AP* (2nd Edition)
by Friedland, Andrew J.; Relyea, Rick
Published by
W. H. Freeman
ISBN 10:
1464108684
ISBN 13:
978-1-46410-868-6
Unit 7 - AP Environmental Science Practice Exam - Section 1: Multiple-Choice Questions - Page 624: 9
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