______ is a high performance fuel made from corn.
One bushel of corn weighs how much?
The only living part of a seed is the ________.
What percent of corn, processed by ethanol refineries, is returned to feed livestock?
Corn can be hauled down rivers on these large, flat boats.
Which kind of corn do we eat directly off of the cob?
What is the nickname given to the region where most corn is grown?
Special, corn-made plastic that breaks down to become part of the soil is considered what?