Background People have been using metals for more than 9,000 years when they first discovered how to get copper from its ore. We use metals in every facet of our lives, from the pipes and fasteners in our homes to the vehicles we use to travel to the tools used by surgeons or mechanics or artists. We wear jewelry. We build computers. Metals are an intrinsic part of our everyday lives. Because metals are found in the earth, they must be mined. Vale SA is a multinational corporation that is engaged in metals and mining; it is one of the largest logistics operators in Brazil. Vale is the largest producer of iron ore and nickel in the world, but it also produces manganese, ferroalloys, copper, bauxite, potash, kaolin, and cobalt. Challenge The objective of the project was to monito

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