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  • Welding is a source of which air pollutant?
Multiple choice

Welding is a source of which air pollutant?

  1. SO2

  2. CO

  3. O3

  4. CO2

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

During welding air pollutants are released and ozone is the most abundant of all of theses pollutants. 

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