Two students learned about respiratory systems in animals. Dana learned more about mammalian lungs, while Barry learned more about the lungs of birds. Which student learned more about surface area for gas exchange between the lungs and bloodstream?
Ans: Dana

Barb and Dee studied chemistry for a school project. After little debate they decided that Dee will study volatile gases, and Barb will study greenhouse gasses. Which girl studied less about carbon dioxide?
Ans: Dee

Mike grew tomatoes on his parcel of land and so did John. Mike's attempt was very successful, because he adjusted the soil's pH to a viable level for growing vegetables, and John didn't. Both parcels had soils with lots of sodium carbonate in them. John's experiment failed. Which soil was more alkaline sodic?
Ans: John's

Dan visited Twin lakes every year. The interesting fact about them wast that, while Twin I had a very cold water all year, Twin II lake had very warm waters year round. Which body of water had fewer problems in the vicinity of industrial discharge ?
Ans: Twin I