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-...
If smoked regularly, the THC lingers in the system for as long as 45 to 90 days. And since the metabolites of marijuana are fat-soluble, it is stored in the major organs in the body wherever fat cells can be found: brain, kidneys, and the liver.