[Q]: Keith is a physician with the city hospital. He noticed that reactions inside human body happen in different rates. He specifically noticed two cases, case A and case B. In case A enzymes were present, but in case B enzymes were not present. In which case rate of chemical reactions would be lower, case A or case B?
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[A]: case B

[Q]: Ryan explored two lakes; Big lake, and Arrow lake to the south. Arrow lake had a river flowing into it, while Big lake presented evidence of underwater geothermal activity. Many divers drowned in Arrow lake because of temperature shock. Which lake had more of a temperature change concentrated over a small vertical interval?
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[A]: Arrow lake

[Q]: There are two neighboring towns in the middle of the United States with a river running through both of them. One town, Glenview, just installed a new set of levees due to concerns about the river flooding. The other town, Binnington, is located just upstream from Glenview and has not yet installed any flood protection. Which town will experience a smaller increase of water when the river floods?
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[A]: Glenview

[Q]: Tree city and Leaf city were the two biggest cities in Boulderland. Tree city burned lots of gas and other fossil fuels, while Leaf city was very protective towards its environment. Which city exposed more people to lung cancer?
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[A]:
Tree