Q: Two rivers spring from the same mountain. Olt was a fast moving river, while Mures river was slow moving and deep. Both rivers are very important for the local economies. Which river had a water that supports lower biodiversity?
A: Mures

Q: Two groups of patients were under observation for heart disease. The Red group was composed of people with low cholesterol, while the Yellow group was comprised of people with very high cholesterol. Which group had fewer people with plaques?
A: Red

Q: Finland has one of the lowest economic inequality in the world. Finland's neighbor Russia has a different story. After the collapse of Soviet Union, Russia's economic inequality soared to the point that it has now one of the highest economic inequality in the world. John and Keith are residents of Finland. While John is rich, Keith is not so fortunate - he is poor. Similarly, David and Greg are residents of Russia. While David is rich, Greg is in poverty. Would people in Finland most likely be more happy or less happy than people in Russia?
A: more happy

Q: Rob is an auto mechanic. He was checking the radiators of his car and truck. He put antifreeze into the car radiator, but didn't put any antifreeze into the truck radiator. He was wondering how the vehicles would fare in coming hot weather. Which radiator's water would have higher boiling point, car or truck?
A:
car