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.
Medical marijuana is already legal in California, which was the first state to legalize it in 1996. But despite California's weed-friendly reputation, there's no guarantee voters will pass another legalization law. California is one of eight states that will vote on legalization of recreational marijuana on Nov. 8. Medical marijuana, depicted here at a farmer's market in Los Angeles, is already legal in California. Prop 19, a ballot item to legalize recreation marijuana, went before California voters in 2010 but failed to pass.