Textbook Problem

 (1) The use of ethanol as an additive in gasoline is really a bad idea. (2) Ethanol is produced from corn, and (3) when 40 percent of the annual corn crop is burned up in car engines, that obviously raises the price of corn for food. (4) Also, adding ethanol to gasoline is highly inefficient. (5) Ethanol yields about 30 percent less energy than gasoline, and (6) it's more expensive to transport and handle than gasoline.