'World Ozone Day' is celebrated on :

Correct option is D

World Ozone Day is celebrated on 16 September each year to raise awareness about the depletion of the ozone layer and to encourage efforts to protect it. This day marks the signing of the Montreal Protocol in 1987, which aims to reduce the production and consumption of ozone-depleting substances.

Important Key Points:

1. The ozone layer protects Earth from harmful ultraviolet (UV) radiation.
2. Ozone-depleting substances, such as CFCs (chlorofluorocarbons), cause the thinning of the ozone layer.
3. The Montreal Protocol is a successful international treaty that has led to the recovery of the ozone layer.
4. The day emphasizes the importance of reducing substances that cause ozone depletion.
5. The ozone layer is expected to recover to pre-1980 levels by the mid-21st century, thanks to global efforts.
6. Awareness campaigns and environmental protection laws have been pivotal in mitigating ozone depletion.

Knowledge Booster:

• 5 June: Celebrated as World Environment Day.