If we were to collect all of the corn produced in the U.S. and convert it to ethanol, and then use the ethanol to provide energy (through combustion), how much of the U.S. demand for energy would that option satisfy?

Search for how much corn is produced annually in the U.S.

Use the targeting results from the previous example to calculate maximumtarget for annual ethanol production

Use heat of combustion of ethanol * annual production of ethanol to calculate maximum heat to be generated by ethanol combustion

Search for U.S. annual consumption of energy

Compare the energy generated by burning ethanol to the energy consumedin the U.S. and report as a %