Whether using a food crop as a source of biofuels is environmentally sustainable would depend upon all of the following, EXCEPT ________
A) the corporate profits that would be made
B) the amount of fertilizers used and their impact on aquatic ecosystems
C) the amount of pesticides used and their impact on biodiversity and groundwater
D) the impact on food supplies and prices
E) the amount of water and land necessary for the crops
Answer: A
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A. five B. four C. one D. three E. two
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A) 1 B) 2 C) 3 D) 4
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Answer the following statement true (T) or false (F)
If the masses of two planetary bodies double, and the distance between them also doubles, the force between them would be
A. half as much. B. one-quarter. C. twice as much. D. none of the above