MCQOPTIONS
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MCQOPTIONS
| 1. |
How much amount of sulfur dioxide is caused in the atmosphere? |
| A. | SO<sub>2</sub><25% |
| B. | 50% <SO<sub>2</sub>>50% |
| C. | 0% |
| D. | SO<sub>2</sub>>50% |
| Answer» B. 50% <SO<sub>2</sub>>50% | |