World Ozone Day is celebrated on

1. 5\(^{th}\) June

2. 16\(^{th}\) September

3. 21\(^{st}\) April

4. 22\(^{nd}\) April

Doubtly Asked 30 Oct 2026 NEET UG 2018 neet Save WhatsApp Report

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Answer: 2. 16\(^{th}\) September

World Ozone Day marks the signing of the Montreal Protocol on 16 September 1987.

5 June is World Environment Day; 21 April and 22 April (Earth Day) are not ozone days.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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