समताप मंडल में सर्वाधिक मा – McqOptions

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1.	समताप मंडल में सर्वाधिक मात्रा में पाई जाने वाली गैस है :
A.	Oxygen (O2)
B.	Nitrogen (N2)
C.	Carbon dioxide (CO2)
D.	Ozone (O3)
Answer» B. Nitrogen (N2)

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