Biology, 05.12.2019 14:31 Emmarazek

Which of the following statements about biofuels is true?
a. biofuels are composed of 100% renewable materials.
b. algae is the leading source of biofuels.
c. energy processing from corn biofuels is not energy efficient.
d. corn is the only source of biofuels.

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Which of the following statements about biofuels is true?
a. biofuels are composed of 100% re...