[Q]: Ben and Andy researched significant greenhouse gasses in Earth's atmosphere. Andy researched more about carbon dioxide, while Ben researched methane gas. Which researcher studied less about anthropogenic emissions?
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[A]: Ben

[Q]: David works for the government as a statistician. He had to produce a report for the coming annual meeting. This year he is thinking about a report with some lifestyle suggestions for middle adulthood population. To make it easier to understand the needs of middle adulthood population he would compare it with a group who are in their twenties. He labeled the first group as group A; and the latter group as group B. Would group B more likely or less likely be diagnosed with cancer than group A?
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[A]: less likely

[Q]: Deep lake presents geothermal activity, while Shallow lake has mixing of saline water with fresh water. Deep lake had more instances of divers having problems because of thermoclines. Which lake has warmer water the bottom?
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[A]: Deep lake

[Q]: Barb and Jill practiced small scale farming. Jill farmed the conventional way, while barb used the no-tillage method. Which farmer didn't cause the predation of the crop itself?
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[A]:
Jill