Biology
NULL
Medium
Question
More than ___________ compounds of tar of tobacco smoke are involved to cause cancer?
A
5
B
90
C
15
D
10
✓ Official correct answer
Community credibility
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A
5
No member explanations yet for this option.
B
90
No member explanations yet for this option.
C
15
No member explanations yet for this option.
D
10
No member explanations yet for this option.
Explanation
Tobacco tar contains numerous carcinogenic compounds, with various sources citing figures ranging from several dozen up to around 90 compounds implicated in causing cancer.