The ozone layer at high altitude contains – McqOptions

MCQOPTIONS

1.	The ozone layer at high altitude contains
A.	atomic oxygen (O) and ordinary oxygen (O2)
B.	only ozone (O3)
C.	mixture of atomic oxygen (O), ordinary oxygen (O2) and Ozone (O3)
D.	only ordinary oxygen (O2)
Answer» D. only ordinary oxygen (O2)

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