Swachh Vayu Diwas is observed on which international day?
- A.World Environment Day
- B.World Ozone Day
- C.International Day of Clean Air for Blue Skies
- D.World Meteorological Day
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The correct answer is the International Day of Clean Air for Blue Skies, on which the ministry held Swachh Vayu Diwas and gave away the fifth round of Swachh Vayu Sarvekshan awards.
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