ओजोन छिद्र सबसे पहले खोजा � – McqOptions

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1.	ओजोन छिद्र सबसे पहले खोजा गया था
A.	अफ्रीका
B.	अंटार्कटिका
C.	इंडिया
D.	यूरोप
Answer» B. अंटार्कटिका

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