Ans:-
13.
A,
Behavioral tolerance occurs when an individual learns to compensate for an effect of a drug.
14.
D,
Tobacco was first introduced to Europeans as cigars.
15.
A,
Over 90% of all U.S. cigarettes sold are now filter cigarettes.
16.
B,
Per capita sales of cigarettes in the U.S. began to decline after the 1964 Surgeon General's report.
17.
C,
One big factor associated with lower rates of cigarette smoking among adults is higher level of education.
18.
A,
The biggest health concern for users of smokeless tobacco has been cancer of the mouth, pharynx and oesophagus.
13. aus tolerance occurs when an individual learns to compensate for an effect of a BehavioraD...
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