This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... Skip navigation
Medical marijuana refers to the use of the Cannabis plant as a physician-recommended herbal therapy as well as synthetic THC and cannabinoids. So far, the medical use of cannabis is legal only in a limited number of territories, including Canada, Belgium, Australia, the Netherlands, Spain, and several U.S. states.
Marijuana is a commonly used illegal drug made from dried leaves of the hemp plant. Smoking marijuana creates a high. Marijuana is a drug that is mostly smoked â in a joint, a bowl, a bong, or other device â but sometimes it can be eaten. Marijuana is illegal, but it is considered a soft drug â as opposed to hard drugs like heroin or cocaine, which are killers. People call marijuana pot and weed and a hundred other slang terms. There's also medical marijuana, which sick people, especially cancer patients, can get to relieve their pain.