I have a new situation: There is a long history of martial arts competition in Fujian Province of China. Interestingly, one can also place bets on competitors. David is a martial arts enthusiast, watching every martial arts movie he can find. This year David and his friend John is visiting the Fujian Province to see the martial arts competition. There are two rounds of competition, round A and round B. Round A competitors would display southern Chinese martial arts while round B competitors would display northern Chinese martial arts. But I can use this background: Some Chinese martial arts instructors focus more on their qinna techniques than others. This is one of the many reasons why the qinna of one school may differ from that of another.[2] All martial arts contain qinna techniques in some degree. The southern Chinese martial arts have more developed qinna techniques than northern Chinese martial systems. The southern martial arts have much more prevalent reliance on hand techniques which causes the practitioner to be in closer range to their opponent. There are over 700 qinna traditional techniques found in all martial arts. In the Non-Temple White Crane style there are 150-200 qinna techniques alone. Along with Fujian White Crane, styles such as Northern Eagle Claw (Ying Jow Pai) and Tiger Claw (Fu Jow Pai) have qinna as their martial focus and tend to rely on these advanced techniques. What is an answer for this question: Which round would display less developed qinna techniques, round A or round B?
Ans: round B

I have a new situation: Ryan explored two lakes; Big lake, and Arrow lake to the south. Arrow lake had a river flowing into it, while Big lake presented evidence of underwater geothermal activity. Many divers drowned in Arrow lake because of temperature shock. But I can use this background: Thermoclines, or sudden changes in temperature. Where the air temperature is higher than the water temperature, shallow water may be warmed by the air and the sunlight but deeper water remains cold resulting in a lowering of temperature as the diver descends. This temperature change may be concentrated over a small vertical interval, when it is called a thermocline.[3][4] Where cold, fresh water enters a warmer sea the fresh water may float over the denser saline water, so the temperature rises as the diver descends.[3] In lakes exposed to geothermal activity, the temperature of the deeper water may be warmer than the surface water. This will usually lead to convection currents.[3] What is an answer for this question: Which lake had more of a temperature change concentrated over a small vertical interval?
Ans: Arrow lake

I have a new situation: Two different countries have different approaches to milk production. Austria produced organic milk, while Hungary produced conventional milk. But I can use this background: Compared to conventional milk production, organic milk production tends to have lower eutrophication potential per ton of milk or per hectare of farmland, because it potentially reduces leaching of nitrates (NO3) and phosphates (PO4) due to lower fertilizer application rates. Because organic milk production reduces pesticides utilization, it increases land use per ton of milk due to decreased crop yields per hectare. Mainly due to the lower level of concentrates given to cows in organic herds, organic dairy farms generally produce less milk per cow than conventional dairy farms. Because of the increased use of roughage and the, on-average, lower milk production level per cow, some research has connected organic milk production with increases in the emission of methane.Animal welfare issues vary among dairy farms and are not necessarily related to the way of producing milk (organically or conventionally). What is an answer for this question: Which country reduced leaching of nitrates from farms?
Ans: Austria

I have a new situation: Two sisters both had allergies. Ann had mild allergies, while Jo had to be very careful because she experienced severe allergic reactions before. But I can use this background: Allergy symptoms can range from mild to severe. Mild symptoms might include itchy eyes, sneezing, and a runny nose. Severe symptoms can cause difficulty breathing, which may be life threatening. Keep in mind that it is the immune system and not the allergen that causes the allergy symptoms. Allergy symptoms can be treated with medications such as antihistamines. Severe allergic reactions may require an injection of the hormone epinephrine. These treatments lessen or counter the immune system's response. What is an answer for this question: Which sister might have had a runny nose?
Ans: Ann