David was visiting Europe last summer. First he visited London. To his dismay, it was overcast all night. Then he flew to Rome. There the sky was as clear as you could get at night. David was very happy about it. Would Earth's surface cool down faster or slower in Rome than in London?
Ans: faster

Scientists studied two groups of mammals. Group One developed natural selection after a few decades, while group Two didn't. It was yet to be determined why that happened. Which group will express unfavorable heritable traits?
Ans: group Two

Two brothers, Tom, aged 26, and Paul, aged 16 were into sports. Tom started weight-lifting to gain more muscle mass. Three years later he was 20-25 lbs. heavier. Paul started track and field, he liked running. Which brother didn't have all of the cartilage in the growth plate replaced by bone?
Ans: Paul

Thomas and Alexander are freshman students in an introductory chemistry laboratory course at their local college. In this week's experiment, both Thomas and Alexander will be starting their experiments with liquid water. They both follow different experimental protocols, and at the end of the experiment Thomas discovers ice in his reaction flask, while Alexander discovers steam in his reaction flask. Which person created a substance with particles that have more freedom to move than they did originally?
Ans: Alexander