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-...
Sometimes factors such as the strength of the marijuana or the person's metabolism, heigâ¦ht/weight, and nutritional and hydration status can affect this, but not reliably and not in every situation. THC can stay in a person's body for as long as 1 to 90 days after smoking or being ingested orally. These are the approximate detection time: Single Use Blood Test: 2-3 days Saliva Test: 12-24 hours Urine Test: 2-3 days Hair Test: Up to 90 days Â· Habitual Blood Test: 2 weeks Saliva Test: 12-24 hours Urine Test: Up to 12 weeks Hair Test: Up to 90 days