input: Please answer the following: John studies how chemicals affect environment. He traveled to the Amish country to see their traditional ways of farming. He noticed they don't use any fertilizers or pesticides. He labeled this part of the study as case A. Then he visited a modern farming facility where they use tons of fertilizers and pesticides. He labeled this part of the study as case B. Which place would have more contamianted groundwater, case A or case B?
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output: case B

input: Please answer the following: Hydrologists studied two samples of rain water. Jim studied an acid rain sample from a nearby city, and Dan studied a sample of water from another town. Which hydrologist learned less about precipitation with a low (acidic) pH?
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output: Dan

input: Please answer the following: David is interested in how electricity works. One day he had two electric charges to investigate, charge A and charge B - both of the charges were negative. He also had two electric fields, field C and field D. He noticed that electric charges were moving from field C to field D. If charge A and charge B are closer, would their potential energy increase or decrease?
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output: increase

input: Please answer the following: The police arrested two homeless people. James was 35 and had been HIV positive for 20 years, and Bill, who was 54 and was not HIV positive. They booked them and let them go. Which person didn't have the immunodeficiency virus?
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output:
Bill