What is the addictive drug in tobacco ______________?
Correct answer: B. Nicotine
- A. Ethanol
- B. Nicotine
- C. Ammonia
- D. Tar
Explanation
Nicotine is the tobacco alkaloid that produces dependence by stimulating the brain's reward pathways. Tar is a harmful mixture of smoke residues, while ammonia and ethanol are not the addictive drug asked for.
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