Social Sciences, asked by Areeba3520, 10 months 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

1987 is the correct answer

manya2013: i cant as i want to sleep

Anonymous: amity

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Anonymous: ur class??

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manya2013: 7th

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Answered by Anonymous

1987 is the answer..

manya2013: please dont message now

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