Q: Sarah and Sophie are sisters living in two different cities. Sarah lives in a very rural area with hardly any air pollution. Sophie lives in a heavily industrialized urban area with many factories and people driving cars to their destinations. This all leads to Sophie's city having a large amount of pollution going into the atmosphere. Who is less susceptible to other diseases?
A: Sarah

Q: Ben and Sam were two twin brothers. One day Ben was feeling sick so they went to the doctor and they discovered that Ben had hepatitis B. Sam was tested as well, but he was 'healthy as an ox'. Which brother experienced less yellowing of the eyes?
A: Sam

Q: The golf course at the Aurora Country Club cuts their grass to 2 1/2 inches high. The grass at the Augusta Country Club is cut to 4 inches. Sam likes more of a challenge when playing golf but Jack likes to play on turf where the ball rolls easier. Is it more or less challenging to play golf at the Augusta Country Club?
A: more

Q: Mark decides he want a cold drink and puts a bottle of warm water in his freezer. By doing this he makes the water colder and as water cools its density increases eventually freezing and becoming a solid, Ice. After a while mark forgets that he put the bottle of water in the freezer. He eventually remembers and comes back to check and the bottle of water is frozen solid. Because of this he leaves the bottle out on his kitchen counter for a few hours and returns to a nice cold bottle of water. Will lowering the temperature of water cause it's density to increase or decrease?
A:
increase