General Knowledge - World Geography - Discussion

73. 

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: Option C

Explanation:

No answer description available for this question.

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