Marijuana Marijuana is a mixture of leaves and the flowering tops of the Indian hemp plant Cannabis Sativa, smoked or eaten for its hallucinogenic and pleasure-giving effects. The psychoactive ingredient of marijuana, tetrahydrocannabinol (THC), is concentrated in the flowering tops of the hem...

Marijuana Marijuana is a mixture of leaves and the flowering tops of the Indian hemp plant Cannabis Sativa, smoked or eaten for its hallucinogenic and pleasure-giving effects. The psychoactive ingredient of marijuana, tetrahydrocannabinol (THC), is concentrated in the flowering tops of the hem...

Marijuana can cause many harmful effects. There has never been a major test though. The ones they've used have shown very different things. I have been very surprised by what I have been reading. I cannot believe the difference in what different scientists think. One says, "It's ha...

Marijuana ( aka grass, pot, weed) is the common name for the crude drug made from the plant, Cannabis sativa. Over 400 chemicals are in marijuana, including the main mind altering ingredient, THC. The amount of THC in the marijuana determines how strong the effects will be. Factors of the strength ...