Black foot disease is due to ground water contamination of
A
Nitrate
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B
Fluoride
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C
Arsenic
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D
Mercury
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Solution
The correct option is A Arsenic In China (Taiwan) when the contaminant like arsenic mixed with drinking-water shows adverse effects. It causes a severe disease of the blood vessels that leads to gangrene is also known as black foot disease. It is an endemic disease to the south western coast of Taiwan.