The presence of nicotine can be detected in the brain
A) as rapidly as 7 seconds after it is ingested by smoking.
B) 2 minutes after smoking, 1 minute after intravenous injection.
C) not until 30 to 40 minutes after ingestion by smoking.
D) of a person who smokes and of one who does not smoke.
Question 2
Nicotine
A) is a depressant for smokers, but a stimulant for nonsmokers.
B) is the primary reason that people begin smoking.
C) is more important than social pressure for starting to smoke.
D) is known to have properties making it addictive.
