[Q]: Fox and Ken were two aspiring horticulturists. Ken studied more about plant pollination, while Fox studied about mycorrhizal fungi. Given the paragraph above, please answer correctly the following question: Which friend read less about a symbiotic association between a fungus and the roots of a plant?
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[A]: Ken

[Q]: Two neighboring countries had health epidemics. While Ghana had a measles problem, Niger had a very serious HIV problem that seemed to get out of control. Given the paragraph above, please answer correctly the following question: Which country had more people transmitting HIV by contact with infected breast milk?
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[A]: Niger

[Q]: The biologists found out that the Indian Ocean had a lower water pH than it did a decade ago, and it became acidic. The water in the Arctic ocean still had a neutral to basic pH. Given the paragraph above, please answer correctly the following question: Which ocean experienced more water acidification over the last decade?
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[A]: Indian

[Q]: Us and Canada are two friendly countries. Canada uses alternative methods to produce electricity while the US use more coal and oil. Both countries recently participated in a Global Warming Council. Given the paragraph above, please answer correctly the following question: Which country causes less air pollution?
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[A]:
Canada