World Ozone Day 2020: Theme & Importance
On September 16, 1987, the United Nations together with 45 other countries signed the Montreal Protocol, on substances that deplete the Ozone layer. Every year this day is celebrated as the International Day for the Preservation of the Ozone layer or World Ozone Day. Consequently, World Ozone day 2020 is being celebrated across the world today, […]
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