A permission is authorization to perform an operation on a specific object, such as a file. Permissions are granted by owners. If you own an object, you can grant any user or security group permission to do whatever you are authorized to do with it. This includes granting permission to take ownership.
Fracking linked to radioactive river water in Pa. River water in western Pennsylvania has elevated levels of radioactivity, some of it from fluids discharged after fracking for natural gas in the Marcellus Shale area, says a Duke University study Wednesday. Post to Facebook.
Fracking (hydraulic fracturing) is a term used to describe a natural gas drilling technique in which thousands of gallons of water, chemicals and sand are pumped into a shale formation to break apart rock and release the natural gas that is trapped below.ydraulic fracturing was first used to recover natural gas and oil in 1947. Halliburton was the first company to use it commercially in 1949. Today, fracking is used to stimulate thousands of oil and gas wells each year, worldwide.