Post Quiz: Sound Question Title * 1. What is a decibel? A loud sound A unit to measure how loud a sound is A part of your inner ear Question Title * 2. What is the abbreviation for decibel? DL dB DBLE Question Title * 3. At what decibel level do sounds start to be dangerous to your ears? 95 decibels 60 decibels 85 decibels Question Title * 4. What sound is dangerous to our ears if we listen for longer than 15 minutes without protecting our ears? Rock Concert Lawn Mower Hair Dryer Done