In the airline industry elevation = height above ground and altitude = height above sea level. Altitude is used to calculate air pressure, elevation is used to make sure you don't crash into mountains.
Marijuana is a dangerous and addictive drug that has many consequences to using it. People debate whether it should be legalized or not due to its pros and cons. Marijuana should not be legalized because it is a gateway drug to the legalization of other drugs and has many bad effects on the users of it.
Why marijuana should not be legalized? It's because it can harm the young people who are the hope and future of human kind. Marijuana may affect the development of the brain if smoked at a young age. This is not only harming the future of young people, but also the future of our country and the world.