[Q]: Scientists studied two island. One with an old ecosystem named Old island, and the other with a newly formed and forming ecosystem named New island. Both islands were inhabited, Old island being heavily inhabited. Which island had a less stable ecosystem factoring in the population?
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[A]: Old

[Q]: Idaho and Utah had many wildfires. Idaho had more wildfires during the day, while Utah had wildfires occur at night. Which state has fewer wildfires fanned by winds?
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[A]: Utah

[Q]: The health inspectors reviewed data from two villages, Key and Auburn. Key village presented higher levels of both indoor and outdoor pollution. Which village used less insecticide?
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[A]: Auburn

[Q]: Keith is a zoologist. He studies large predators. Last year, he was studying different species of lions. First, he visited the Gir forest in India. There he found the Asiatic Lions. Unfortunately, only few Asiatic Lions are left in the wild, and they have to mate with their close relatives. He then visited the Serengeti reserve in Tanzania. There he found that the African Lions were not forced to mate with close relatives due to their large number. Which species of lion would have less deleterious recessive mutations, Asiatic or African?
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[A]:
African