Problem: Ben and Andy researched significant greenhouse gasses in Earth's atmosphere. Andy researched more about carbon dioxide, while Ben researched methane gas.  Which researcher studied another significant long-lived greenhouse gas in Earth's atmosphere?

A: Ben


Problem: Ken is a scientist who studies atomic systems. He is currently responsible for studying two systems that they are referring to as Omega and Alpha. These two systems are essential to the research that is being done to potentially allow humans to travel to Mars in a reasonable amount of time. Little is known about these systems currently, but scientists have observed that Omega has been steadily gaining more potential energy. Alpha has been rapidly losing potential energy. Ken is hoping to discern why this is happening and try to utilize his findings to further space exploration.  Which system is less stable?

A: Omega


Problem: Bob and Andy are two microbiologists.  They are studying bacteria: Bob studies nitrogen fixating bacteria, while Andy studies non-respiratory and facultative anaerobes.  Which researcher learned less about sulfate reduction?

A: Andy


Problem: Bob works for the local electric power company. Part of is job involves checking the generators and transformers. His work schedule allows him to work on the generator tagged as gen A only on Mondays, and the transformer tagged as tran B only on Tuesdays.  Which one would most likely be located in a power plant, gen A or tran B?

A:
gen A