Please answer this: 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 be at greater risk for vitamin D deficiency?
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Answer: tribe A
Problem: Two neighboring islands had different sized populations. Green island had a small population. Red island had a large population and environmental problems. Researchers studied these islands over a span of 5 decades. Which island had a higher death rate?

A: Red
Problem: Given the question: Dan decided to preserve some fruit and roots to see how long they last before they spoil. He also bought other fruit that he plans to eat fresh. He candied plums, pears, ginger and quince, and he ate fresh apples, oranges and mango. Which fruit have a lower sugar content candied ginger or fresh apples?
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The answer is:
fresh apples
input question: Two students studied for the biology exam. Ken studied about global warming, while Hank studied about Earth's atmosphere. Which student learned less about Earth's average temperature????
output answer: Hank
Rob is studying medicine in a prestigious university. Today, his professor is teaching about blood glucose levels. He gave example of two patients, patient A and patient B. Patient A had high blood glucose level, but patient B had low blood glucose level. Rob was amazed to find how body keeps its balance. Would patient B produce more or less insulin than patient A?
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Answer: less
Q: A group of researches studied the green house gas emissions and their effects on Earth and people during the eighties compared to the twenties. During which decade did Earth experience an increased concentration of carbon dioxide?
A:
eighties