1. Y-axis is type of sound being measured X-axis is the decibels/sound level for type of sound being measured
2. Whisper - 20 decibels, normal taking - 60 decibels, rock concert - 120 decibels
3. every ten decibels is ten times as loud. If a whisper is 20 decibels and normal talking is 60 decibels then normal talking is 40 times as intense as whispering
4. Rock concert, pain threshold and jet plane could be painful if exposed to them
