Problem: Given the question: Mary and Ann are mother and daughter. Mary is in her 70's while Ann is in her late 40's. They both work out regularly for improved health. Mary has been experiencing some health issues lately. Which person experienced a decrease in stamina?
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The answer is:
Mary

Problem: Given the question: Dan studied genetic engineering. He was applying his knowledge of genetic engineering to develop better crops. Recently, he had successfully developed a crop, crop A, that was herbicide tolerant. To determine the versatility of the crop he compared it with another crop that was not tolerant of herbicides, crop B. The results of his research would allow his company to market the new crop. Which crop would need less number of chemicals, crop A or crop B?
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The answer is:
crop A

Problem: Given the question: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers. Which city had fewer vehicles releasing harmful volatile hydrocarbons into the atmosphere?
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The answer is:
Hill