alleryOn what date was the Montreal Protocol on ozone-depleting substances agreed?
A16 September 1987
B11 December 1997
C5 June 1972
D22 April 1970
Answer & Solution
Correct answer: A. 16 September 1987
The Protocol was agreed on 16 September 1987, which is why 16 September is marked as Ozone Day.
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