Two students learned about soils in school. Brad had to study forest soils, while his colleague Frank had to study grasslands. They both did a good job and received A's for their efforts and accumulated knowledge. Which student read less about precipitation that exceeds evapotranspiration?
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Answer: Frank

Dan and Joe studied animals for biology class. Joe had to study predator animals, while Dan studied herbivores and grazers. Which student learned less about potential keystone species?
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Answer: Joe

Two farms had different plant cultivation methods. Jolly farm adopted the permaculture methods created by Sepp Holzer, while Peach farm continued using fertilizers and pesticides. Which farm caused more Nitrogen to end up in oceans?
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Answer:
Peach