input question: All marine creatures are not fish. There are some mammals, for example, whales, also live in the water. Rob wants to know more about differences between fish and other non fish creatures in the water. He divided them into two groups, group A and group B. Group A consists of fish, and group B consists of non fish creatures in the water. He started to see the differences between these two groups. In which group fertilization may not take place outside of mother's body, group A or group B????
output answer: group B

input question: The U.S. produces its energy using fossil fuels, while Germany uses nuclear power plants as their main energy source. The two countries impact the environment in different ways. Which country causes more harm to the health of living things????
output answer: The U.S.

input question: Two related native tribes live thousands of miles away from each other. Ana tribe lives near the South Pole in Antarctica, while Momu tribe lives in Northern Alaska near the North Pole. Which tribe was less exposed to an increased risk of eye cataracts????
output answer: Momu

input question: Two islands were located in the Pacific Ocean. Woo island was frequently shaken by earthquakes, but Mud island had no such problems. Which island experienced fewer rocks moving several centimeters????
output answer:
Mud