MCQOPTIONS
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				| 1. | 
                                    How CNG is a cleaner fuel?I. It produces oxides of Sulphur and Nitrogen in very small amounts.II. It makes environment less polluted.III. It emits less greenhouse gases. | 
                            
| A. | Only I and II | 
| B. | Only II and III | 
| C. | Only I and III | 
| D. | All I, II and III | 
| Answer» E. | |