MCQOPTIONS
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				| 1. | 
                                    Air pollution on the roads can be reduced by_______. | 
                            
| A. | Discouraging the use of CNG in vehicles | 
| B. | Planting trees on roadsides | 
| C. | Reducing the number of vehicles on the road | 
| D. | Both B and C | 
| Answer» E. | |