Problem: Ricky, an entomologist, is observing an ant colony in his back yard. After some observation, he discovers that all the ants travel down one of two distinct paths in order to find food to bring back to the colony. After taking some measurements, Ricky sees that path A is approximately 100 meters in length, and path B is approximately 150 meters in length. Ricky is now trying to make some scientific conclusions based on these observations. If we wanted the pheromone density of path A to be similar to that of path B, would path A need to be shorter or longer?

A: longer

Problem: Bobby and Sally are siblings that currently live in different cities. Bobby lives in a city that has wildfires on a regular basis. The local government is effective at combating these fires, but there are still quite a few over the course of a year. Sally lives somewhere that has never had a wildfire before, and she wasn't even aware they existed until her brother started talking about them. Who is more likely to experience eye irritation?

A: Bobby

Problem: Bend city used a lot of fossil fuels to generate electricity. Hop city, another city from the same county, used only alternative sources of energy. Which city caused fewer skin cancers?

A: Hop

Problem: A new volcano is growing underwater. Every few days it has minor lava flow eruptions off the coast of Hawaii. People have actually enjoyed swimming in the water above this newly forming volcano because it is very soothing and relaxing. Will the speed of molecules increase or decrease as temperature decreases?

A:
decrease