Multiple choice

'World Ozone Day' is observed on which of the following days?

  1. September 11

  2. September 12

  3. September 13

  4. September 16
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

World Ozone Day is observed on September 16th every year to commemorate the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer in 1987. The United Nations designated this day to raise awareness about ozone layer protection. September 11, 12, and 13 are not the correct dates.

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