Question

the following statement about alcohol is true:*
because it is a liquid, alcohol is not categorized as a drug.
it is the most commonly used mind - altering substance in the u.s.
barbiturates, alcohol, and valium are classified as *
stimulants
depressants

Explanation:

• Alcohol is a drug. It is a central nervous system depressant. In the U.S., it is indeed the most commonly used mind - altering substance.
• Barbiturates, alcohol, and Valium (diazepam) all act as depressants. Stimulants like caffeine or amphetamines have the opposite effect (increasing nervous system activity).

Answer:

• For the first question: "It is the most commonly used mind - altering substance in the U.S."
• For the second question: "depressants"