Practise noise-pollution questions by connecting human sound sources with hearing risks and wildlife effects, including disrupted bat echolocation.
Three friends decided to go to a rock music festival featuring a new group called "The APES." Before they left for the festival, one of their parents reminded the group to bring ear protection. Which of the following responses listed below was correct?
Abbey: "Heck, loud sound isn't dangerous as long as you don't feel any pain in your ears."
Ben: "Relax, hearing loss is only temporary-we'll be OK tomorrow."
Caren: "I've heard that all sounds permanently cause hearing loss-so it doesn't matter."
None of their responses were correct. Refer to the following graph to answer Question 50.
Atmospheric Concentration of Lead 1976-1995