asked 123k views
1 vote
Which word is described as air that has been contaminated by tobacco smoke? A. passive smoke B. secondhand smoke C. mainstream smoke D. sidestream smoke

asked
User Dawoon
by
9.0k points

2 Answers

4 votes
Passive would be my best guess. 
answered
User Mark Leiber
by
7.9k points
2 votes
B.Second-hand smoking this also means the air is being breathed in by another person.
answered
User FKLC
by
8.0k points
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