MCQOPTIONS
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MCQOPTIONS
| 1. |
Which is the gas that causes eye irritation as a result of photochemical smog? |
| A. | CO<sub>2</sub> |
| B. | O<sub>2</sub> |
| C. | CH<sub>4</sub> |
| D. | Acrolein |
| Answer» E. | |