[Q]: A biologist was in Australia making observations about the local species when he identified two distinct groups of butterflies. He found that one group of butterflies, group A, blended in with the dark oak trees that were common in the area. Butterflies in the other group, group B, however did not blend in as well and could easily be spotted by predators whenever they landed on the oak trees. Which group of butterflies will reproduce more often?
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[A]: group A

[Q]: Sandra liked all creatures but loved to study frogs. Her sister Julie studied more about fish and butterflies. They both loved nature. Which sister heard fewer frog calls during the day?
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[A]: Julie

[Q]: Two cities had different energy source. Big city burned fossil fuels cut forests and cleared land, while Blue city used alternative sources of energy. Which city contributed less to global warming?
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[A]: Blue

[Q]: Two gardeners started their planting season at the same time. Bill used mycorrizal fungi compost for the garden, while Hank used regular top soil. Bill was very happy with the harvest. Which gardener observed more improved mineral nutrient absorption from the soil?
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[A]:
Bill