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Author Question: The most common of the psychoactive substances, used by 90 percent of Americans, is a. nicotine ... (Read 17 times)

ericka1

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on: Jun 22, 2018
The most common of the psychoactive substances, used by 90 percent of Americans, is
 
  a. nicotine
 b. caffeine
 c. marijuana.
  d. opium.

Question 2

From a physiological perspective, the reason that a nicotine addict smokes cigarettes frequently throughout the day is to prevent withdrawal symptoms, which include all of the following EXCEPT
 
  a. irritability.
 b. weight loss.
 c. depression.
 d. difficulty concentrating.


memslove

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Reply #1 on: Jun 22, 2018
Answer to Question 1

b

Answer to Question 2

b


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