ATLANTA (WAOK) - America’s high schools are places where drugs, booze and cigarettes are all too often used and sold, according to a new survey.

The survey by Columbia University’s National Center on Addiction and Substance Abuse finds that 17-percent of high school students smoke, use drugs, or drink alcohol during the school day.

The survey reports that 44-percent of high school students know a classmate who sells drugs at school, and 60-percent say drugs are available on their campuses.

Marijuana is the biggest seller, along with prescription drugs, cocaine, and ecstasy.

The survey also reports that teenagers who regularly attend religious services are less likely to use tobacco or illegal substances.