THCA stands for tetrahydrocannabinolic acid, a organic compound in raw cannabis. It doesn’t result in a large on its own. Heating THCA as a result of decarboxylation turns it into THC, the Energetic ingredient liable for cannabis’s psychoactive effects. https://rowanoamw97531.uzblog.net/from-raw-to-psychoactive-how-thca-gets-thc-48876278