[Q]: Two students from the same class, studies different types of animals. Bill studied predators, while John studied grazers. Which student didn't find out that a single species could become dominant over others?
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[A]: John
input: Please answer the following: Two high school buddies, Dan and Bob, had very different lifestyles 30 years later. Dan made only healthy lifestyle choices, was vegan. Bob ate meat, cheese and didn't care about his health and didn't protect himself. Which man did not smoke, Dan or Bob?
++++++++++
output: Dan
Please answer this: Ben and Mike both studied earthquakes, while Mike was more interested specifically in mantle melting and related phenomena. Which person studied more about the three ways of mantle melting?
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Answer: Mike
Problem: Two teams of researchers studied the environment in Antarctica. Team Black studied air pollution and the ozone layer, Team Red studied the water. Which team didn't observe that the culprit are chlorine gasses?

A: Red
Problem: Given the question: Two groups of people followed different diets. Group A was comprised of vegans, while group B had a regular diet, with the mention they ate a lots of fatty foods and fast-food. Which group consumed fewer saturated fatty acids?
++++++++++++++++++++++++++++++++
The answer is:
Group A
Problem: Frank and Noah were two researchers. Noah researched the climate of Antarctica, while Frank researched the climate changes of Madagascar and the Southern tip of Africa. Which researcher observed a large amount of surface warming?

A:
Noah