alleryओझोन उणो करपी पदार्थांविशींच्या मॉन्ट्रियल प्रोटोकॉलाचेर खंयच्या तारखेक कबलात जाली?
A16 सप्टेंबर 1987
B11 डिसेंबर 1997
C5 जून 1972
D22 एप्रिल 1970
Answer & Solution
Correct answer: A. 16 सप्टेंबर 1987
ह्या प्रोटोकॉलाचेर 16 सप्टेंबर 1987 दिसा कबलात जाल्ली, हाका लागून 16 सप्टेंबर हो ओझोन दीस मानतात.
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