ran its operations between 1989 and 1999 (Nelson and Ganoza, 1999), the cyanidation process was used to extract the precious metal. It stated neutralising the sodium cyanide employed during the process with sodium hypochlorite. Over the years, three tailings ponds were utilised to contain the ...
My students were sometimes unable to see the world except through the lens of their own blackness. I had a class that was host to a German exchange student. One day he put on a Power Point presentation with famous German landmarks as well as his school and family. From time to time d...
When we think of money today, we picture it either as round, flat piece of metal which we call coins, or as printed paper notes. But there are still parts of the world today where coins and notes are of no use. They will buy nothing, and a traveler might starve if he had none of...
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