Question: John is a soil scientist. He has been studying the lands near Mississippi delta. He noticed cases of hypoxia in that are. He labeled that study as case A. To compare that to other areas he visited Arizona. There he didn't see any occurrence of hypoxia. He labeled that case as case B. Wetlands would see less of which case, case A or case B?
Answer: case B

Question: Two botanists had different interests, Mike studied only trees and flowers, while Chris was fascinated with studying fungi. Which botanist learned less about parasitic fungi?
Answer: Mike

Question: Bob and Bill studied at the same university. While Bob got into studying nutrition, Bill ended up studying about cancer and how to prevent it. Which student learned less about preventing some types of cancer?
Answer:
Bob