The current generation of ethanol as a biofuel requires
A) sugars and the process of fermentation.
B) any plant material and the process of fermentation.
C) manure, water, and aerobic bacteria.
D) bioengineered bacteria and any form of cellulose.
A
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On which date are the sun's rays closest to perpendicular to Earth's surface in the middle latitudes of the Northern Hemisphere?
A) March 21 B) June 21 C) September 22 D) July 21
Both the Angles and the Normans contributed to the development of the English language because they
A) spoke Germanic languages. B) invaded England. C) spoke languages derived from Latin. D) diffused English around the world. E) agreed to divide England.
The range of environmental conditions frequently found in ecotones make them areas of high biodiversity
Indicate whether the statement is true or false
Which of the following scenarios would best indicate that a thrust fault is present at a location?
A) The hanging wall of the fault has slipped down. B) Two parts of the same rock have been horizontally displaced by 20 feet. C) Cambrian-aged rocks have been shoved on top of Jurassic-aged rocks. D) The crust has lengthened, allowing a graben to slip down and create a pull-apart basin.