Q: Bend village was located 20 miles away from Mound village. People in Bend village used gasoline powered vehicles, while Mound village used only electrical vehicles. Which village emitted fewer nitrogen oxides?
A: Mound

Q: Nate and Andy were two zoologists. They have been studying the characteristics of nocturnal and diurnal animals. Andy studied nocturnal animals, while Nate studied diurnal animals. Which zoologist learned less about crypsis?
A: Nate

Q: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources. Which country released less greenhouse gas into the atmosphere ?
A: Bhutan

Q: David collects cigarette packs of different years. He found that two of his packs, pack A and pack B, are very different. Pack A is from before September 2012, and pack B is from after September 2012. He started searching on the internet to find out why the packs were different. Which pack's health warning would be less visible, pack A or pack B?
A:
pack A