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19/09/2020 10:03 am
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The processes of calcination and roasting in metallurgical industries, respectively, can lead to:
(1) Photochemical smog and ozone layer depletion
(2) Photochemical smog and global warming
(3) Global warming and acid rain
(4) Global warming and photochemical smog
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19/09/2020 10:05 am
(3) Global warming and acid rain
Explanation:
In Calcination and roasting CO2 and SO2 are released which are responsible for Global warning and acid rain.