What is Marijuana
What is Marijuana? Marijuana the world’s most commonly used illicit drug. ... Marijuana’s strength is determined by the amount of THC it contains, and the THC levels can be affected in many ways including plant type, weather, soil, and time of harvest. THC content of marijuana, which averaged less than 1 percent in 1974, rose to an average 4 percent by 1994. How it is Used Marijuana is usually smoked in loosely rolled cigarettes called “joints” Marijuana can also be used by slicing open and hollowing out cigars, replacing the tobacco with marijuana, to make what are called "blunts.