[Q]: Bill and Paul were farmers. Bill used insecticides to get read of aphids, while his buddy farmer Paul didn't. Which farmer didn't use an insecticidal soap solution to kill aphids?
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[A]: Paul

[Q]: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles. Which village polluted the air less?
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[A]: Mound

[Q]: David was trying to see how steam engines work. For that, he conducted two tests, test A and test B. In test A, he used low temperature. On the other hand, in test B, he used high temperature. David started thinking about how he could use the results of his tests in everyday life. Which test would see lower kinetic energy, test A or test B?
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[A]: test A

[Q]: John was sitting at point C near a railway track. Suddenly, he heard a train coming towards him from point A with constant sound of its horn. Eventually, it reached very close to him at point B. Then the train sped by him at point C where he was sitting, reaching point D after some time. Finally, it reached even farther from him at point E. At which point the horn would sound higher in pitch, point D or point E?
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[A]:
point D