A sustained decibel range of over ________ decibels can cause permanent hearing loss.

A) 55
B) 70
C) 85
D) 100

Exposure to sustained noise levels of over 85 decibels can cause permanent hearing damage. This is because prolonged exposure to loud noise can damage the tiny hair cells found in the inner ear, which in turn affects the ability to hear. It is important to protect your ears from loud noises, especially if you are exposed to them frequently, to prevent long-term damage to your hearing.