Skip to content
Early access — you're among the first to try PYQLabs. Share feedback
UGC NET 2021DecemberEveningQ37MCQanswer keyexplanation soonhard
Environment · Development & Environment
Back to EnvironmentPreviousNext question
  1. A.
  2. B.
  3. C.
  4. D.
SDGsMontreal ProtocolUltraviolet RadiationOzone Depletion
Next question · 2021 Q38