Why has the development and use of biofuels been slow to provide a reliable solution to the search for an alternate energy source?
a. They are unevenly distributed around the globe.
b. Technology to harness biofuels on a large scale has eluded researchers.
c. No one has found a way to prevent commercially viable fuel-yielding plants from taking up the space the world needs to grow food.
d. There has not been enough research to demonstrate the viability of biofuels as a renewable solution.
c
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For whom was the French Royal Academy of Painting and Sculpture’s category, fête galante, created?
A. Watteau B. Fragonard C. Bernini D. Poussin
What patterns in violence toward nonwhites emerged in the late nineteenth and early twentieth centuries?
a) Areas with smaller percentages of white population tended to see more incidences of racial violence. b) Areas with larger percentages of white population tended to see more incidences of racial violence. c) States in the Northeast tended to see more incidences of racial violence. d) States in the West and the South tended to see the fewest incidences of racial violence.
The first fully unified government in Chinese history was that of the
A. Mauryans. B. Zhou. C. Qin. D. Han. E. Shang.
The most controversial aspect of the Social Security Act was
a. pensions for Americans 65 and older. b. aid to state unemployment compensation systems. c. assistance to families with dependent children. d. how much further it went than Francis Townsend's proposals.