when did the ozone day
celebrated and why
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Explanation:
On December 19, 1994, the UN General Assembly proclaimed September 16 to be the International Day for the Preservation of the Ozone Layer, commemorating the date when the Montreal Protocol on Substances that Deplete the Ozone Layer was signed in 1987. The day was first celebrated on September 16, 1995.
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Answer:
16 september
Explanation:
to preserve layer of ozone o3
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