Skip to content
Early access — you're among the first to try PYQLabs. Share feedback
UGC NET 2023JuneEveningQ38MCQanswer keyexplanation soonmedium
Environmental Science · Pollution
Back to Environmental SciencePreviousNext question
हिंदी version
  1. A.
  2. B.
  3. C.
  4. D.
secondary aerosolair pollutionsulphate particlesenvironmental science
Next question · 2023 Q38