finite arable land. Soil pollution occurs when the presence of toxic chemicals, pollutants or contaminants in the soil is in high enough concentrations to be of risk to plants, wildlife, humans and of course, the soil itself. Arable land is turning to desert and becoming non
Marijuana (thc) will be present in your blood for approximately 2 to 3 days after you have used it. It may be remain in your bloodstream past 2 to 3 weeks if you are a frequent and heavy user. Source(s): http://wiki4weed.com/how-long-does-weed-...
How long will it take for the THC to leave my system completely? Thc: It depends upon a few variables, such as potency, dose per day , body fat and weight, metabolism and other factors related to clearance vs storage in fat cells. If use was for 30 continuous days, average ~ 30-45 days clearance to be certain.