input question: David was studying human history. He selected two specific eras of human history, era A and era B. Era A was before humans had invented agriculture. And, era B was after the invention of agriculture. He noticed that human societies had changed dramatically after the invention of agriculture. Did era B have higher or lower death rate than era A????
output answer: higher
Nirvania continued to develop and became a first world country by 2025. Its economic strength and the accumulation of capital, led to prosperity and citizen happiness. On the other side of the river, Borania, however, decided to return to dictatorship and it's citizens and investors started to lose hope and move their capital to foreign accounts and investments. Which country has a stronger currency?
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Answer: Nirvania
Q: Bubba and Dean are two farmers which realized the benefits of having AM fungi in their soil. Dean, however, took active steps in helping the growth of AM fungi so he grew cover crops on his lands. Which farmer promoted more hyphal growth?
A: Dean
Question: Reed started studying protozoa and was more interested in the predatorial behaviors of protozoa, while Brad wanted to know more about other types of protozoa, suck as grazers and decomposers. Which person learned less about protozoa preying upon single-celled organisms?
Answer: Brad
[Q]: An anthropologist gathered observations for two native tribes from southern Africa. He noticed that both tribes spend the majority of the day outside, and therefore they are both exposed to fairly high amounts of UV light. He also quickly realized that one key difference between the tribes was that members of tribe A had dark skin, while members of tribe B had light skin. Members of which tribe will block less UV light from penetrating their skin?
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[A]: tribe B
Problem: Given the question: John is comparing his medical record with his father's and son's medical records. John is 40 years old; his father is 70 years old; and his son is 10 years old. It appears that both John and his father has Retinitis. But his son does not have Retinitis. Who is most probably not infected by infectious agents, John or John's son?
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The answer is:
John's son