Please answer this: The ecologist moved from Aspen, where there was no air pollution, to Seattle which experienced a lot of air pollution. He started studying the weather there as well. Which city had more sulfur oxides in the air?
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Answer: Seattle
Problem: Dan likes to experiment with different food items. Today, he wants to make curds out of milk and see how it differs from plain milk. For his experiment he collected three bottles of milk, bottle A, bottle B, and bottle C. Bottle A and bottle B milk are pasteurized, but bottle C milk is just raw milk. He kept the bottle A milk intact, but made curd out of bottle B and bottle C milk. In which milk casein would tangle into solid masses, bottle A or bottle B?

A: bottle B
Problem: Given the question: Roger and Samantha are brother and sister. Both of them perform roughly the same amount of physical activity on a day-to-day basis. Roger, however, eats a lot more food relative to the amount he needs given his activity levels. Samantha, on the other hand, eats the appropriate amount of food given her level of activity. Who is less likely to gain fat?
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The answer is:
Samantha
input question: David needs to purchase a camera for his photography class. He went to the local consumer electronics store to find himself a good camera. Two cameras caught his eye, camera A and camera B. Camera A had a very small pinhole, but camera B had larger aperture. David needs to decide which camera should he buy. Which camera would have lower f-number focusing lens, camera A or camera B????
output answer: camera A
Robert and John both went to the doctor because they had been having stomach problems. The doctor decided to take images of the men's jejunum to try and diagnose the issues. He discovered that Robert has more villi covering his jejunum compared to John. Who has less capillaries available to transport nutrients into the bloodstream?
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Answer: John
Q: Barb and Ann were friends. The used to play together outside in the yard till one day Barb's parents found out that she had sickle cell anemia. They haven't played together since. Which girl had a life threatening disease?
A:
Barb