12. Which of the following substances
son is
in tobacco smoke damage the gas
exchange system?
a. carbon monoxide and carcinogens
b. carbon monoxide and nicotine
GOUD - SOUD
K. carcinogens and tar
d. nicotine and tar
mL
Answers
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Answer:
b.Carbon monoxide and nicotine
Explanation:
Carbon monoxide is one of the most poisonous gases and kills human beings.
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