World Ozone Day is celebrated on :

Question

Accepted Answer

World Ozone Day is celebrated on 16 September, which is correctly identified as Option 2. This day is officially known as the International Day for the Preservation of the Ozone Layer. It was designated by the United Nations General Assembly in 1994 to commemorate the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer, which took place on 16 September 1987. The Montreal Protocol is a significant international treaty aimed at phasing out the production and consumption of ozone-depleting substances to protect the Earth's ozone layer.

Now, let's explain why the other options are incorrect:

1. **Option 1: 18 October** - This date does not have any recognized international observance related to the ozone layer. Therefore, it is not the correct date for World Ozone Day.

2. **Option 3: 17 November** - Similar to Option 1, 17 November is not associated with any global event concerning the ozone layer. Hence, it is not the correct date for World Ozone Day.

3. **Option 4: 16 August** - This date is also not linked to any international observance related to the ozone layer. Therefore, it is not the correct date for World Ozone Day.

In conclusion, Option 2, 16 September, is the correct answer because it marks the anniversary of the Montreal Protocol, a pivotal agreement in the global effort to protect the ozone layer.