Q: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment. Which city exposed fewer people to lung cancer?
A: Leaf

Q: During the summer Anthony found it was way too hot to be comfortable. He went out to his garage to get an old fan. The fan was spins on a metal bearing but because it is old it was slightly rusted. When he turned the fan on it spun very slow, struggling to move. He then decided to lubricate the bearing that rotates the fan blades and the fan started spinning normally. Given that Adam decided to tighten the bearing in his fan will the work it requires to operate increase or decrease?
A: increase

Q: Jimbo and Jedd are both farmers who have lakes and water wells downstream from their farms. Jimbo's products have been in high demand recently, so he has started to use very high amounts of fertilizers on his farms. Jedd has recently decreased the amount of fertilizer he uses because his products aren't wanted as much by the people in his town. Who will be more likely to contaminate their respective water wells?
A: Jimbo

Q: Bird city had may economic ties with Pine city. Pine city was located in the mountains, and was inhabited by nature lovers and people that protected the environment. Bird city was situated on the banks of a large river flowing into the sea. They relied mostly on conventional agriculture and used fertilizer for their crops. Which city contributed less to the creation of dead zones?
A:
Pine