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10 Jan 2025, 02:45
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Difficulty:
35%
(medium)
Question Stats:
71% (01:35) correct
29%
(01:55)
wrong
based on 222
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Ethanol, a fuel derived from corn, can be used alone to power vehicles or along with gasoline to reduce the amount of gasoline consumed. Compared with conventional gasoline, pure ethanol produces significantly less pollution per gallon used. In order to combat pollution, many individuals advocate the increased usage of ethanol as a fuel source for vehicles in conjunction with or in place of gasoline.
In evaluating the recommendation to increase the use of ethanol, it would be most important to research which of the following?
(A) Whether the majority of existing vehicles are capable of using ethanol for fuel, either alone or in conjunction with gasoline
(B) Whether the process of growing corn to produce ethanol results in significant amounts of pollution
(C) Whether completely replacing gasoline with ethanol results in less pollution than using ethanol in conjunction with gasoline
(D) Whether ethanol is more expensive to produce than conventional gasoline
(E) Whether there are some vehicles in which using ethanol fuel would not result in a significant reduction in pollution compared to conventional gasoline
In evaluating the recommendation to increase the use of ethanol, it would be most important to research which of the following?
(A) Whether the majority of existing vehicles are capable of using ethanol for fuel, either alone or in conjunction with gasoline
(B) Whether the process of growing corn to produce ethanol results in significant amounts of pollution
(C) Whether completely replacing gasoline with ethanol results in less pollution than using ethanol in conjunction with gasoline
(D) Whether ethanol is more expensive to produce than conventional gasoline
(E) Whether there are some vehicles in which using ethanol fuel would not result in a significant reduction in pollution compared to conventional gasoline
27 May 2025, 04:00
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Premise: Ethanol (fuel derived from corn) when used in vehicles produces less pollution than vehicles powered by gasoline.
Conclusion: Use ethanol powered vehicle in conjunction with or in place of gasoline powered vehicles.
Here only two option choices seem feasible at first A and B.
Option A:
Whether the majority of existing vehicles are capable of using ethanol for fuel, either alone or in conjunction with gasoline
It doesn't matter if majority or even minority of vehicles are capable of using ethanol for fuel. Even if say 20% of vehicles are capable of using ethanol then pollution will be reduced. So this option is not the answer.
Option B:
Whether the process of growing corn to produce ethanol results in significant amounts of pollution
This makes sense as say if producing ethanol creates more pollution than using it as fuel. the net pollution will be still higher.
Option B is the answer.
Conclusion: Use ethanol powered vehicle in conjunction with or in place of gasoline powered vehicles.
Here only two option choices seem feasible at first A and B.
Option A:
Whether the majority of existing vehicles are capable of using ethanol for fuel, either alone or in conjunction with gasoline
It doesn't matter if majority or even minority of vehicles are capable of using ethanol for fuel. Even if say 20% of vehicles are capable of using ethanol then pollution will be reduced. So this option is not the answer.
Option B:
Whether the process of growing corn to produce ethanol results in significant amounts of pollution
This makes sense as say if producing ethanol creates more pollution than using it as fuel. the net pollution will be still higher.
Option B is the answer.
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