1) the bailey stone works employs six people. assumming that the density of uncompacted waste is 480 kg/m^3, determine the annual volume of solid waste produce by the stone works assumming a waste generation rate of 1 kg/cap*d.
2) as the supply of high- grade ores is used up, lower grade ores are used to produce minerals. assumming that you are producing 100 kg of metal, use the mass balance method to calculate the kilograms of waste rock per kilogram of metal for ore containing 50, 25, 10, 5 and 2.4 percent metal.