Jeremy works on a construction site operating a jackhammer and a large welding machine. Jeremy is frequently exposed to sounds with high decibel levels due to being around these machines so often. Jeremy's brother, Alexander, on the other hand works in a library. Unlike Jeremy, Alexander is frequently exposed to sounds with very low decibel levels during his work. Who is exposed to sounds that are more dangerous?
Ans: Jeremy

The doctors studied two groups of people, group one which included people with respiratory diseases caused by viruses, and group two, which had people with respiratory diseases caused by bacteria. Which group included people that had the flu?
Ans: group one

People from two villages got infected with viruses and got sick. People from Hill village got infected with the flu, while people in Valley village got infected with hepatitis B. Which villagers will experience fewer instances of liver cancer?
Ans: Hill

Two sister countries used petroleum in different ways. Norway used it to make plastics, while Sweden used it for fuel. Which country used less fuel for trains?
Ans: Norway