Why does maintaining a consistent euphoria from heroin use ...

[sammy]

Why does maintaining a consistent euphoria from heroin use require multiple administrations each day?
 
  a) Withdrawal symptoms can arise within about 8 hours after the last dose
  b) Tolerance develops, and the user must increase dosages to stay high.
  c) The body's release of histamines clears the blood of heroin after 4 hours.
  d) Low purity of street heroin requires users to administer the drug repeatedly to achieve euphoria.

Question 2

How do taxes from tobacco sales influence global tobacco regulation efforts?
 
  a) Governments stand to lose significant tax revenue if tobacco use is strictly regulated
  b) Taxes pay for treatment and prevention efforts, media campaigns and nicotine replacement aids.
  c) Governments reduce taxes on tobacco to spur local economic growth, then raise them to reduce tobacco use.
  d) Taxes are used to subsidize the tobacco industry, which then lobbies for reduced global regulation of tobacco.

[gabrielle_lawrence]

Answer to Question 1

A

Answer to Question 2

A

[sammy]

TYSM

[tkempin]

Gracias!