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.
California Medical Marijuana Card. As per California medical marijuana law, the state Department of Public Health established a voluntary medical cannabis ID system, to issue medical marijuana cards (also referred to as cannabis cards, pot cards, or marijuana cards), to qualified patients with a doctors recommendation.