[Q]: John designed a hypothetical lever that would have ideal mechanical advantage. He labeled the lever as lever A. He then wanted to compare this lever with a real world lever, which he labeled as lever B. He intended to use these levers to increase force. Which lever would have smaller mechanical advantage, lever A or lever B?
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[A]: lever B

[Q]: Bob was studying about Earth's atmosphere. He found that increased depletion of Earth's ozone layer is a relatively new phenomenon. Most scientists would blame the CFC gases for the depletion of ozone layer. In the early twentieth century ozone layer was relatively stable. Bob labeled that time as time A. But in the late twentieth century situation changed with seasonal depletion of ozone layer. He labeled that time as time B. Which time would see more phytoplankton, time A or time B?
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[A]: time A

[Q]: Two cities, Appleton and Orangeburg, are approximately 100 miles apart and are currently experiencing different weather. Appleton is windy and cloudy, but Orangeburg has very calm air but is also cloudy. Which city has clouds with less electrons?
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[A]: Orangeburg

[Q]: Mary had two children. Her firs born was named Bill and was normal, and her second child was named Sam and had Down syndrome. Which child had some impairment of physical growth?
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[A]:
Sam