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Question

Which of the following is usually not an air-pollutant?

This question was previously asked in
SSC CGL 2016 (Tier 1) Previous Year Question Paper (11-Sep-2016) (Shift 2)
The correct answer is

Nitrous oxide

The correct answer is Option 4, as Nitrous oxide is not usually considered a major air pollutant compared to others like hydrocarbons, sulphur dioxide, and carbon dioxide.

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