The processes of calcination and roasting in metallurgical industries,

Question:

The processes of calcination and roasting in metallurgical industries, respectively, can lead to :-

  1. Global warming and acid rain

  2. Photochemical smog and ozone layer depletion

  3. Global warming and photochemical smog

  4. Photochemical smog and global warming


Correct Option: 1

Solution:

Due to industrial process $\mathrm{SO}_{2}$ gas is released which is responsible for acid rain \& global warming.

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