Which of the following is/are the reasons for more corrosiveness of industrial atmosphere than rural atmosphere?

Which of the following is/are the reasons for more corrosiveness of industrial atmosphere than rural atmosphere? Correct Answer Formation of sulfurous and sulfuric acid and ejection of corrosive ammoniacal solutions

Formation of sulfurous and sulfuric acid from sulfur burning gases and ejection of corrosive ammoniacal solutions are the reasons of industrial corrosion. Whereas carbon dioxide is not corrosive in nature.
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