You are given a background paragraph that describes one or more causal or qualitative relationships such as a relationship in economics or a scientific law and a story that makes use of the concepts or the relationship described in the provided paragraph. You need to come up with a question about the story that requires an understanding of the relationship described in the background paragraph. The generated question should not be answerable without both the background and story. Write a question about the story that requires a relationship in the background paragraph to answer. Check whether your question requires both the background paragraph and the story to answer. If your question can be answered by only one of these, try to rewrite your question so that it requires both. Note that "flipping" a word in the question can give rise to a new question where the answer will be different from the original question. Often, "flipping" a word gives rise to flipping the direction of the relationship, for example, from "increase" to "decrease."

Background Paragraph: No doubt you already have a good idea of what temperature is. You might say that it’s how warm or cool something feels. In physics, temperature is defined as the average kinetic energy of the particles of matter. When particles of matter move more quickly, they have more kinetic energy, so their temperature is higher. With a higher temperature, matter feels warmer. When particles move more slowly, they have less kinetic energy on average, so their temperature is lower. With a lower temperature, matter feels cooler. 
Story: Sarah just finished reheating two leftover chicken sandwiches in the microwave that she had made the previous night. She takes them out and leaves them on the kitchen counter while she pours herself a glass of wine. Her roommate, Carla, comes out and decides to take a more scientific approach toward the chicken sandwiches. Carla sees that the average kinetic energy in sandwich A is higher than the average kinetic energy in sandwich B. Carla then takes a big bite out of both sandwiches and returns to her room as if nothing happened.
Which sandwich less likely burned Carla's mouth?

Background Paragraph: Human beings invented agriculture about 10,000 years ago. This provided a bigger, more dependable food supply. It also allowed people to settle down in villages and cities for the first time. Birth rates went up because there was more food and settled life had other advantages. Death rates also rose because of crowded living conditions and diseases that spread from domestic animals. Because the higher birth rates were matched by higher death rates, the human population continued to grow very slowly. 
Story: Harry and Kim studied ancient humans. Kim studied a 15000 year-old settlement, before humans invented agriculture, while Harry studied a 5000 year-old village.
Which student studied about a village that had a higher birth rate?

Background Paragraph: During May, June, and July, the Northern Hemisphere is exposed to more direct sunlight because the hemisphere faces the Sun. The same is true of the Southern Hemisphere in November, December, and January. It is Earth's axial tilt that causes the Sun to be higher in the sky during the summer months, which increases the solar flux. However, due to seasonal lag, June, July, and August are the warmest months in the Northern Hemisphere while December, January, and February are the warmest months in the Southern Hemisphere. 
Story: Bill is planning some trips for his business and his family. His coworkers have informed him that they would like to travel in the summer months of June, July, and August, and prefer the temperature to be at its warmest. Bill is also planning to travel with his family and they would prefer to also go when it is the warmest part of the year, but can only travel in December, January, or February.  The options for travel are in the Chile which is in the Southern Hemisphere, and Arizona in the Northern Hemisphere.

Where should Bill take his coworkers to insure they are there in the warmest parts of the year?