Why is bioethanol often added to gasoline?
A. Ethanol is a renewable resource that can increase fuel efficiency and lower vehicle emissions.
B. Adding bioethanol to fuels uses surplus corn and wheat that would otherwise go to waste.
C. Ethanol is blended with gasoline because it can't be used directly to fuel vehicles.
D. It costs less than gasoline.
A. Ethanol is a renewable resource that can increase fuel efficiency and lower vehicle emissions.
You might also like to view...
Microevolution is change in the __________ of a population. Fill in the blank(s) with the appropriate word(s)
Many scientists believe that the evolution of multigene families, such as the genes for hemoglobin, is a result of which type of genetic rearrangement?
A) Duplication B) Deletion C) Inversion D) Reciprocal translocation E) Nonreciprocal translocation
Why does Dallas, Texas, have a higher yearly average temperature than Chicago, Illinois?
A) Dallas is at a higher latitude than Chicago. B) Chicago experiences more prevailing westerly winds than Dallas. C) Dallas receives more solar irradiance than Chicago. D) Dallas is closer to a large body of water, than is Chicago.
Respond to the following statements with reference to the four glands or structures of the mammalian gastrointestinal tract listed below.
A. Initial digestion of starch is facilitated by its secretions. B. The enzyme pepsin is produced there. C. The enzyme aminopeptidase is produced there. D. The fat-digesting enzyme, lipase, is formed there.