जोन होलएक _________ है – McqOptions

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1.	जोन होलएक _________ है
A.	वातावरण में छेद
B.	ओजोन परत का विनाश
C.	जलमंडल में छेद
D.	क्षोभमंडल में छेद
Answer» B. ओजोन परत का विनाश

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