Problem: Two brothers got sick and weren't feeling well. Strangely enough they found out they were infected with viruses. Tom was infected with human papillomavirus, while Chris was infected with hepatitis. Which brother had a lower chance of developing a chronic viral infection?

A: Tom

Problem: Brad had a friend that lived on Oahu, part of The Hawaiian Islands. The friend's name was Hank and he invited Brad over to visit the islands. Brad had never been there before, and he lived in London, UK. Which friend lived farther from Lanai island?

A: Brad

Problem: Two farms were situated on opposite banks of a large river flowing into the ocean. Hill farm practiced conventional agriculture, while Dew farm practiced permaculture design within the context of organic farming. Which farm generated less marine litter?

A: Dew

Problem: Berg city used only gas powered vehicles while Hill city used electrical vehicles. The two cities had a similar population and vehicle numbers. Which city had more vehicles releasing harmful volatile hydrocarbons into the atmosphere?

A:
Berg