[Q]: Rob is an environmental scientist. He was doing a study on agroforestry. To test the sustainability of agroforestry he conducted two pilot projects, pilot A and pilot B. In pilot A, he used a land for agrofroestry. In pilot B, he used a land for usual row-cropping. He needed to find the pros and cons of both systems. Which project would have less soil cover, pilot A or pilot B?
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[A]: pilot B

[Q]: Bobby and Will were two friends attending a genetics course. Bobby studied a small, isolated group of mammals. Will studied a large, healthy population of the same species. Which person observed a 'genetic bottleneck'?
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[A]: Bobby

[Q]: Ants are one of the most interesting creatures on earth. David wants to study ants for his biology project. He is specifically interested in ant species Acromyrmex heyeri. This semester he studied this ant in Americas. First day when he studied the ants the temperature was 10 degree Centigrade. In the second day of his study the temperature rose to 25 degree Centigrade. In the third day of his study the air humidity was high. But in the fourth day of his study air humidity dropped. David wants to continue his study of this same ant species in Asia next semester. In the second day of his study would David see more or less openings in the nest thatch?
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[A]: more

[Q]: Two neighboring counties used different agricultural methods on their farm fields. Cook county used many fertilizers and pesticides, while Dane county used only organic methods and no pesticides. As a result, the waters in Dane county were cleaner. Which county contaminated fewer water wells?
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[A]:
Dane