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."

Q: Background Paragraph: New species develop naturally through the process of natural selection . Due to natural selection, organisms with traits that better enable them to adapt to their environment will tend to survive and reproduce in greater numbers. Natural selection causes beneficial heritable traits to become more common in a population and unfavorable heritable traits to become less common. For example, a giraffe’s neck is beneficial because it allows the giraffe to reach leaves high in trees. Natural selection caused this beneficial trait to become more common than short necks. 
Story: Two different islands had animals evolving in different ways. Big island had new species develop naturally through natural selection, while Low island did not.

A: Which island didn't experience natural selection?
****
Q: Background Paragraph: Making these healthy lifestyle choices can also help prevent some types of cancer. In addition, you can lower the risk of cancer by avoiding carcinogens , which are substances that cause cancer. For example, you can reduce your risk of lung cancer by not smoking. You can reduce your risk of skin cancer by using sunscreen. How to choose a sunscreen that offers the most protection is explained below ( Figure below ). Some people think that tanning beds are a safe way to get a tan. This is a myth. Tanning beds expose the skin to UV radiation. Any exposure to UV radiation increases the risk of skin cancer. It doesn’t matter whether the radiation comes from tanning lamps or the sun. 
Story: Justin and Robert are brothers who both work in construction in the summers. Due to their work, they both often spend a lot of time outside with the sun shining down on them for several hours a day for a few months at a time. Justin always makes sure to apply sunscreen frequently when he works, while Robert never applies sunscreen.

A: Who has a higher risk of getting skin cancer?
****
Q: Background Paragraph: Storing large volumes of data – When storing XML to either file or database, the volume of data a system produces can often exceed reasonable limits, with a number of detriments: the access times go up as more data is read, CPU load goes up as XML data takes more power to process, and storage costs go up. By storing XML data in Fast Infoset format, data volume may be reduced by as much as 80 percent. 
Story: Adam had a busy day storing XML. At 4 PM, he stored 20 Gigabytes to the database. At 5 PM, he stored 25 Gigabytes to the database. At 6 PM, he stored 30 Gigabytes to the database. At 7 PM, he got dinner. At 8 PM, he stored 35 Gigabytes to the database. At 9 PM, he stored 40 Gigabytes to the database. At 10 PM, he went to sleep to finish storing XML tomorrow.

A:
What time did storage costs go up:  4 PM or 10 PM?
****