I read this background article the other day: Boys and girls between the ages of 9 and 13 should get 9 mg of iron every day. Girls between the ages of 14 and 18 should get 15 mg of iron every day. Boys between the ages of 14 and 18 should get 11 mg of iron every day. Pregnant women need the most iron27 mg daily. Good sources of iron include shellfish, such as clams and oysters. Red meats, such as beef, are also a good source of iron. Non-animal sources of iron include seeds, nuts, and legumes. Breakfast cereals often have iron added to them in a process called fortification. Some good sources of iron are listed below ( Table below ). Eating vitamin C along with iron-containing food increases the amount of iron that the body can absorb. I am facing a new situation today: A brother and sister are going to the doctor to get their physical done before the start of the school year. Jessica, the sister, and Mike, the brother, are both in the same grade in high school. Neither are having any issues, but are simply going as a precautionary measure in case there is something the doctor can find out. Also, it's a requirement to get regular physicals in order to attend schools so that's another major reason both are going. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Who is more likely to be told they don't need to eat more red meat?
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Answer: Mike

I read this background article the other day: 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. I am facing a new situation today: Two physicists studied the influence of kinetic energy on the environment. Will studied high temperature environments, while his pal Don studied cooler environments. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which person didn't observe that particles with more kinetic energy feel warmer?
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Answer: Don

I read this background article the other day: About 10% of sedimentary rocks are limestones. The solubility of limestone in water and weak acid solutions leads to karst landscapes, in which water erodes the limestone over thousands to millions of years. Most cave systems are through limestone bedrock. I am facing a new situation today: White mountains are often visited by tourists because of the many beautiful caves, stalactites, stalagmites and karst phenomena. Dome mountains are interesting to tourists because they are very massive, of volcanic origin and excellent for climbing. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which mountain has a lower percentage of sedimentary rocks?
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Answer:
Dome