Here's how to care for an aloe vera of your own. About This Plant. There are hundreds of varieties of aloe plants, which are indigenous to Africa and a few neighboring areas. Aloes come in many varieties that range in size from a few inches to tree heights of 30 to 40 feet, in the case of the kokerboom (or quiver tree).
Marijuana smoke smoke contains a similar range of harmful chemicals to that of tobacco smoke (including bronchial irritants, tumor promoters and carcinogens) (Hoffmann et al, 1975).
The chemicals in synthetic marijuana are created in laboratories, and are similar on a molecular level to tetrahydrocannabinol (THC), the main psychoactive ingredient in cannabis. The substances are different enough than THC so that they donât show up on drug screening urine tests.