Environment And Road Safety Education And Violence Against Women And Children And Drug Abuse 2019 Exam With Answers

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7.

Cigarette smoke has approximately ................ known carcinogens.

A: 4

B: 12

C: 70

D: 60

The answer is: C

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Explanation

Tobacco smoke contains over 4,000 chemicals, of which more than 70 are known to cause, initiate or promote cancer and are called "carcinogens".