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Erosion occurs naturally in the wild but can also occur as a negative effect of gold mining Excessive amounts of gold mining can wash away soil into nearby rivers as well as strip an area of soil altogether Serious erosion can also strip an area of its ability to support agriculture Cyanide The chemical cyanide is used in the extraction of gold from ore It is very toxic to humans and animals

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The methods of working metal after its extraction varied according to the type of metal and the use to which it was put casting hammering gilding preparing metal wires etc GOLD Heb zahav Gold is one of the rare metals found as an element in nature It is extracted from the earth by a process of collecting and washing

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