Difficulty is defined by (a) frequency of use, (b) frequency of spelling pattern, and (c) developmental norms. It is not difficult, then, for teachers to place students with words of appropriate difficulty based on simple measures of instructional level (Schlagal, 1996).
If one assumes that shifts in the supply curve of ethanol are solely due to the changing price of corn, then, up to an ethanol price of $2.90, the price of corn completely determines the price of ethanol. In other words, the price of corn drives the price of ethanol, not the other way around. This is actually quite logical since the amount of ethanol used is essentially fixed; consequently, something else must be driving the price of ethanol.
The answer iâ¦s, quite simply, yes. The Foundation for Economic Education reported: Corn-derived ethanol yields 35 percent less energy than gasoline. So as the percentage of ethanol in gasoline goes up, miles per gallon will go down. Translation: Our demand for gas has gone and will continue to go up thanks to this government-promoted biofuel program..