Ethanol gasoline replaces regular gasolinea. Reduce the pollution caused by automobile exhaust emissions.b. Choose alternative energy sources that blend ethanol and gasoline from grain and various plant fibers.c. Materials and recycling: Rely on innovative materials to replace the excessive exhaust emissions of regular gasoline.d. Economic benefits: Ethanol-based gasoline is cheap to produce (processed from grain and plant fibers).Environmental benefits: Ethanol gasoline can save the use of non-renewable resources of oil, thus reducing the emission of automobile exhaust. Greatly reduce the pollution to the environment.e. Waste to wealth. Fuel ethanol made from grain and various plant fibers.f. Biological cycle-farming/collection.