Environment & Ecology · Environment
Which landmark international event is commemorated by observing World Ozone Day on 16th September?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The establishment of the Multilateral Fund in 1991
- 2The entry into force of the Kigali Amendment in 2019
- 3The adoption of the Vienna Convention in 1985
- 4The signing of the Montreal Protocol in 1987✓
Correct answer
The signing of the Montreal Protocol in 1987
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