What is NOT a method that has been used to reduce the negative environmental impact of mining? A. recycling mined metals B. creating mining technology C. using only man-made metals D. improving environmental regulations
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The only method which has not been used to reduce the negative environmental impacts of mining is the use of man-made metals.
Since, natural metals are in abundance till now and that science has not come up with a substitute for natural metals, we tend to use natural metals only.
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