When is the International Day for the Preservation of the Ozone Layer observed globally every year?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 16 September.
The International Day for the Preservation of the Ozone Layer is celebrated globally each year on September 16. This date commemorates the signing of the Montreal Protocol on September 16, 1987, which officially came into force on January 1, 1989.
The Montreal Protocol is a global agreement designed to protect the ozone layer by gradually eliminating substances that harm it, including chlorofluorocarbons (CFCs) and halons. Since its implementation, it has been recognized as one of the most effective environmental treaties, with every country in the world ratifying it.