[Q]: John likes to ride on hot air balloon. Last month he rode on a balloon with his friend Keith. First they were at the ground-level. They called it camp A. Then they rose to the height of three miles. They called it camp B. Eventually, they reached six miles above ground. They called it camp C. Where the air would be thinner, camp A or camp B?
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[A]: camp B
input: Please answer the following: Different wavelength electromagnetic radiations have different uses. John is a physicist. He needed to find appropriate wavelength electromagnetic radiations for his experiments. To that end, he selected three electromagnetic radiations, microwaves, infrared light, and visible light. He noted microwaves as case A, infrared as case B, and visible light as case C. Would case A have longer or shorter wavelengths than case B?
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output: longer
Please answer this: Ken and Stacy are two engineers discussing their plans about what source of energy they should use to generate electricity in a new city they are helping design. Ken feels that they should use coal since it's reliable, abundant and relatively cheap. Stacy argues that they should use solar power because there is an infinite supply of solar energy. Which person's plan will contribute less to global warming?
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Answer: Stacy
Problem: John was interested in climate change issues. To that end, he studied two imaginary situations, case A and case B. In case A, there would not be excessive greenhouse gases in the atmosphere. On the contrary, in case B, the amount of greenhouse gases in the atmosphere would increase dramatically. John realized that the amount of greenhouse gases in the atmosphere has many practical implications. In which case more of the longer wavelengths would be absorbed in the atmosphere, case A or case B?

A: case B
Problem: Given the question: Two sisters attended a wedding. Ann got very sick early on, after eating the appetizer. She was infected with norovirus and with hepatitis A. Bianca danced for a while then ate the main course and fell ill. She found out she was infected with Giardia and trichinella. Which sister had a type of roundworm?
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The answer is:
Bianca
Problem: James is memorizing the periodic table and some of the features of the elements on it. He is currently working on the fourth row which starts with Potassium (K) on the far left and ends with Krypton (Kr) to the far right. Given two elements are in the same row of the periodic table, which element will have a higher number of elections, a metal or a nonmetal?

A:
nonmetal