Social Sciences, asked by Areeba3520, 1 year ago

When was the Montreal Protocol on Substances that Deplete the Ozone Layer agreed upon?
1987
1989
1991
1990
None of these

Answers

Answered by manya2013

0

1987 is the correct answer

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Answered by Anonymous

0

1987 is the answer..

manya2013: please dont message now

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