[Q]: Bill and Paul were farmers. Bill used insecticides to get read of aphids, while his buddy farmer Paul didn't. Which farmer used a strong water jet to kill aphids?
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[A]: Bill

[Q]: Ken is a microbiologist. He got two samples of yeasts, yeast A and yeast B, from two different businesses. Yeast A is used in a bakery, and yeast B is used in a brewery. He has to decide the characteristics of each yeast sample for further study. Interestingly, despite all his curiosity, Ken doesn't like any yeast to be around him. Which yeast sample is not a good match as a leavening agent, yeast A or yeast B?
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[A]: yeast B

[Q]: Two students studied the atmosphere of Earth and other planets from our solar system. Zack learned about Earth's atmosphere, while Ken learned about the atmospheric conditions on planet Venus. Which student learned less about water vapor clouds?
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[A]: Ken

[Q]: A research institute is investigating the effect of alcohol in human body. They gave two groups of subjects, group blue and group red, two different drinks, labeled as blue drink and red drink. The blue drink contained alcohol, and the red drink did not contain any alcohol. Blue drinks were given to the blue group and the red drinks were given to the red group. Which subjects would have lower core body temperature, blue group or red group?
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[A]:
blue group