What is happening to the amount of copper metal being produced from ores?
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Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. ... This trickles slowly through the ore dissolving copper to form copper sulfate. The copper is recovered by electrolytic refining.
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Copper can be extracted from its ore by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. ... This trickles slowly through the ore dissolving copper to form copper sulfate. The copper is recovered by electrolytic refining.
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