The level of THC in marijuana varies. The upper the extent, the upper its potency, and the more effects it's on your body and brain. Modern marijuana crops are more powerful than ever before. The standard strength of THC in marijuana is 15%, up from about 4% inside the mid-1990s. https://accidentliabilitysupport64063.bloggosite.com/39552384/medical-marijuana-can-be-fun-for-anyone