Perhaps the greatest problem in growing crops for fuel is
A) the immense amount of ozone released.
B) it is physically impossible.
C) the ethics of producing fuel rather than food.
D) that it must all be accomplished underwater
E) the fuel has never been able to power automobiles.

Question

Quizplus · Accepted Answer

Growing crops for fuel raises ethical concerns about using land and resources that could be used for food production instead.

Perhaps the Greatest Problem in Growing Crops for Fuel Is