A scuba diver is currently exploring the ocean floor. During the day she happens upon two different ocean basins. For some reason, both have signs next to each basin indicating how old they are. According to the signs, basin D is significantly older than basin F. The scuba diver decides to explore basin F first and then will look around in basin D on her return trip. Given the paragraph above, please answer correctly the following question: Which basin has a cooler floor?
Ans: basin D

Two neighboring habitable planets from the same solar system, planet U and planet N, had Earth-like atmospheres. The inhabitants of planet U destroyed the ozone layer by their actions, while their neighboring planet N didn't. Given the paragraph above, please answer correctly the following question: Which planet had inhabitants that used fewer aerosol coolants?
Ans: planet N

John is learning about different states of matter. So far, he recognized three states of matter, state A, state B, and state C. State A is in solid state. State B is in liquid state, and state C is in gaseous state. He needs to learn more about their individual characteristics. Given the paragraph above, please answer correctly the following question: Which state would most likely be denser, state A or state B?
Ans: state A

Gary researched two old human settlements. Village A was smaller, it existed about 12,000 years ago. He also studied village B, which existed about 6,000 years ago. The village was much bigger and better developed. Given the paragraph above, please answer correctly the following question: Which village existed before the invention of agriculture?
Ans: Village A