MCQOPTIONS
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MCQOPTIONS
| 1. |
Ozone is formed by the interaction of _______ |
| A. | UV or O<sub>2</sub> |
| B. | O and O<sub>2</sub> |
| C. | O and UV |
| D. | O<sub>2</sub> and CO |
| Answer» B. O and O<sub>2</sub> | |