Usain was once a competitive swimmer, but he became bored with the sport and decided to start running very frequently instead. Usain tried to convince his brother, Asafa, to take up running as well. Asafa didn't really like running, though, so he hardly ran much at all. Who will increase the strength of their cardiac muscles more?
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Answer: Usain

Two brothers studied chemistry in school. Ted studied alkanes, while Ned studied cycloalkanes. They both received grade A. Which brother learned more about methane?
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Answer: Ted

James spent a lot of time indoors, and didn't get out much like Rob, his friend, who loved outdoors stuff. Which friend was exposed less to chemical substances?
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Answer:
Rob