What does it mean when we say that marijuana and alcohol are "gateway" drugs?

When you ask your friend what movie he would like to see, he replies, “whatever you want to see.” what style of communication is your friend demonstrating? active assertive passive aggressive

Which situational condition decreases the chances of crimes?

Astairway has 6 steps. is it a handrail required? a. a handrail is required b. a handrail is not required c. double handrails are required d. only nosing is required