Q: Robert and his brother Timothy are both marathon runners. As marathon running is an endurance event, a key component is being able to replenish your oxygen supply by taking frequent breaths. This week, Robert is running a marathon in Colorado, which has low air pressures. Timothy is also running a marathon, but he is running in Florida, which has high air pressures. Who will have more difficulty in keeping a steady supply of oxygen during their marathon?
A: Robert

Q: John was interested in the Sun's radiations that Earth receives. One of the radiations was in the ultraviolet spectrum. He categorized it as spec A. The other radiation was the visible light. He categorized it as spec B. He then searched online to find the pros and cons of each of them. In spec B, would the photons have less or more energy than in spec A?
A: less

Q: Two groups of friends went camping , but camped separately a few hundred yards away and started a fire each. Both groups had the same volume of wood. Group P had larger logs, while group Q had small twigs, sawdust and kindlings. Which group had brought smaller particles of wood to burn?
A: group Q

Q: Two colleagues studied at the same university. Nick studied the brains of birds, while Joe studied the brains of mammals. Which colleague studied less about the mental abilities of an animal?
A:
Nick