MCQOPTIONS
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| 1. |
The main pollutants responsible for causing the greenhouse effect, acid rain, and ozone layer depletion are : |
| A. | H2O, CO and CFCs respectively |
| B. | CH4, CO2, and NOx respectively |
| C. | CO2, CFCs and O3 respectively |
| D. | CO2, SO2, and CFCs respectively |
| Answer» E. | |