One of the main motivations for using corn-based ethanol in the United States is ________
A) that by doing so, we reduce our reliance on imported oil
B) that we have excess crops available for fuel production
C) the generation of biodiesel as a by-product of ethanol production
D) that all new vehicles can use both ethanol and gasoline as fuel
A
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In August, 2012 the average temperature at Location X was 90°F. Describe the climate in Location X
A) Location X has a hot climate. B) Location X has a warm climate. C) Location X has a climate featuring wide seasonal variation. D) There is not enough information given to answer this question.
Igneous rocks that contain quartz and abundant feldspar are called:
a) felsic/silicic b) intermediate c) mafic d) magnetic e) ironic
Which environmental challenges will be most difficult to overcome for the United States and Canada?
What will be an ideal response?
Which of the following is an example of a colloid in which a liquid is dispersed in a liquid?
A) butter B) marshmallows C) mayonnaise D) whipped cream