When World Ozone Day is celebrated?
  • 1

    September 13

  • 2

    September 14

  • 3

    September 15

  • 4

    September 16

Answer:- 4
Explanation:-

The International Day for Preservation of Ozone Layer (or World Ozone Day) is observed every year on September 16 for the preservation of the Ozone Layer.

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