Ethanol Is a Renewable Chemical Energy Source, but There Are

question 29

Multiple Choice

Ethanol is a renewable chemical energy source, but there are presently some barriers to its use as the primary fuel for cars. Which of the following is not among these barriers?

• A) It is more expensive than gasoline.
• B) It has a lower fuel value than gasoline.
• C) Much of the energy it can produce is expended in its production.
• D) It is a greater contributor to global warming than gasoline because it produces more carbon dioxide per carbon atom than gasoline.
• E) All of the above are barriers to its use as a primary fuel.

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