Background Paragraph: The Figure below shows decibel levels of several different sounds. As decibel levels get higher, sound waves have greater intensity and sounds are louder. For every 10-decibel increase in the intensity of sound, loudness is 10 times greater. Therefore, a 30-decibel “quiet” room is 10 times louder than a 20-decibel whisper, and a 40-decibel light rainfall is 100 times louder than the whisper. High-decibel sounds are dangerous. They can damage the ears and cause loss of hearing. 
Story: 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 louder sounds? Who is exposed to quieter sounds? Who is exposed to sound waves with greater intensity? Who is exposed to sound waves with lower intensity? Who is exposed to sounds that are less dangerous? Who is exposed to sounds that are more dangerous? Who is less at risk of experiencing hearing loss due to the sounds they encounter frequently? Who is more at risk of experiencing hearing loss due to the sounds they encounter frequently? Whose ears, Jeremy's or Alexander's, are less at risk of being damaged due to the sounds they encounter frequently? Whose ears, Jeremy's or Alexander's, are more at risk of being damaged due to the sounds they encounter frequently?