to get an ounce of gold is being extracted 30 tons of rocks and sprayed liquid diluted cyanide, which separates the gold from the rock. In large mines are removed half a million tons of rock a day and placed in the form of huge piles sometimes up to the size of the Great Pyramids and sprayed with a solution of metal dust Sam over the years. Two-thirds of the gold found in the world is extracted from an open and very large mines to the extent that it can be seen from outer space; where considered these mines as an environmental disaster, given caused by the contamination of air, soil and water, and when he came from behind and beyond the large amounts of waste, which up rising to the height of each consisting of a 30-storey building, which nominate them toxic metals and acids. I have made mine waste acidity in groundwater thousands of times higher than the percentage increase in the batteries.
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