The processes of calcination and roasting in metallurgical industries, respectively, can lead to :
A
Global warming and photochemical smog
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B
Photochemical smog and global warming
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C
Global warming and acid rain
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D
Photochemical smog and ozone layer depletion
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Solution
The correct option is C Global warming and acid rain In Calcination and roasting CO2 and SO2 are released which are responsible for Global warming and acid rain.