Question

which of these is unhealthy behavior?
drinking from water faucets
drinking root beer
smoking marijuana

Explanation:

Drinking from water faucets is a normal and generally healthy way to hydrate. Root - beer is a sugary beverage but not as harmful as smoking marijuana. Smoking marijuana can have negative impacts on physical and mental health, including respiratory problems, cognitive impairment, and potential addiction.

Answer:

Smoking Marijuana