The EROEI of corn is 5:1 compared to conventional oil,which has an EROEI of 20:1.This means _________.
A) corn produces 5 units of energy for every unit of energy invested.
B) oil gives less energy return on energy invested per unit.
C) corn has a net energy production of 5.
D) oil has a net energy production of 21.
E) corn and oil have the same energy return for each unit of energy invested.
Correct Answer:
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