[Q]: Two friends named Jill and Jane met after many years and had a chat over a cup of tea. Jane was 70 years-old, while Jill was 55. They shared many stories. Which friend had a greater chance of losing mental function because of age?
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[A]: Jane

[Q]: the students used yeasts in two different experiments: they baked bread using baker's yeast, and made beer, using brewer's yeast. They learned a lot about sugars and chemistry. Which yeast is found around the human body less often?
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[A]: baker's yeast

[Q]: Two countries had big rivers discharging in the same ocean. Finland was very aware of environmental pollution and acted accordingly, while Russian practiced conventional agriculture and used fertilizers. Which country caused more hazardous particles to reach into the ocean?
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[A]: Russia

[Q]: Phillip just came home to his apartment after taking a long, vigorous bike ride. He enters the front door to find his roommate, Brandon, sitting on the couch playing videogames and eating potato chips. Phillip tells Brandon that if he keeps being so lazy and snacking so much he's going to start looking chubby. Brandon just waves Phillip off and goes back to his game. Are Brandon's cardiac muscles increasing or decreasing in strength?
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[A]:
decreasing