Skip to content
Early access — you're among the first to try PYQLabs. Share feedback
UGC NET 2019JuneMorningQ46MCQanswer keyexplanation soonmedium
Environment · Pollution
Back to EnvironmentPreviousNext question
  1. A.
  2. B.
  3. C.
  4. D.
Surface OzoneAir PollutionPhotochemical SmogTropospheric Ozone
Next question · 2019 Q47