Answer: Fuel with less emission.
Explanation:
Science and technology has developed an efficient fuel E-85 which is known as flex fuel, this fuel refers to the high-level ethanol-gasoline blend that contains 51% to 83% ethanol.
It depends on the season and geography. It can be used as an flexible fuel. This fuel has less emission as compared to the conventional fuel. The emissions consists of hydrocarbon, oxides of nitrogen, carbon dioxide and carbon monoxide.