Q: Robert and his brother Jeff are both farmers whose farms are near large rivers. These rivers eventually flow into the Pacific Ocean. Robert recently switched to a different brand of fertilizer to increase the yield on his crops. This fertilizer contains a chemical that tends to destroy oxygen when it comes into contact with it. Due to heavy rains on his farm, large amounts of this fertilizer have been leaking into the river near Robert's farm. Meanwhile, Jeff uses fertilizer that is very stable and does not leak into the rivers near his farm. Who will contribute less to the formation of dead zones in the Pacific Ocean?
A: Jeff

Q: Two neighboring cities had different climates. Dune city had very dry air and no rain, while Bay city had very high humidity, fog and lots of rain. Which city had more problems with corrosion?
A: Bay

Q: John and Keith are playing a decision making game. They have three decisions to make decision A, decision B, and decision C. Decision A and decision B have certain outcome, but decision C's outcome is uncertain. John would apply optimal decision making process while Keith would rather rely on his hunches. In respect to decision C, would John's strategy most likely maximize or not maximize the expected utility?
A: maximize

Q: Two neighboring farms both had depleted soils due to intensive agricultural practices for decades. Apple far decided to start an agroforestry system and other methods to protect their depleted soils, while Pear farm did nothing and had big losses the following years. Which farm didn't reduce the runoff?
A:
Pear