Question: Planet Y and planet X were two inhabited planets in a nearby solar system. People from Planet X were living in harmony with nature, and didn't hurt the environment in any way. People on planet Y generated lots of air pollution, and destroyed their ozone layer by using inappropriate substances. Which planet used fewer aerosol sprays?
Answer: planet X

Question: Two teams studied two types of animals: team A studied predators, while team B studied grazers. They learned a lot from this experience. Which team didn't learn that predators play an important role in an ecosystem?
Answer: team B

Question: John was studying the plate tectonics of earth. He specifically selected two locations, location A and location B. He noticed that location A had lot of plate tectonics activities, but location B didn't have much of that. He wondered how that would make difference in those locations' characteristics. Which location would have more volcanoes and earthquakes, location A or location B?
Answer:
location A