Yes, exhaled smoke does indeed contain THC. That's why people hot-box cars. It is especially effective if you're passing around a couple of joints in a car with all the windows up. Pretty soon, you're floating in it.
Yes it does.
No. potpourri does NOT contain THC.
Marijuana
you smoke marijuana and THC sticks to your fat cells.
Yes, I don't smoke but I get high off the hot box my friends do in their car, if you inhale exhaled smoke, there is still THC that will enter Your system
No. Only Marijuana, Marinol, Cesamet, and Sativex contain THC at this time.
THC is found in Marijuana its what gets you high when you smoke weed.
Medical marijuana
NO! Lyrica does not contain THC
Obviously But watch out for a headache
Yes, the more you smoke, the more THC is absorbed into your body
Cesamet contains a synthetic form of THC, the active ingredient of marijuana.
Yes, as long as you had it in your mouth.