Final answer:
d) Taking a quiet stroll in the park
Hearing protection should be used in high noise environments exceeding 85 dB, such as operating machinery or attending concerts. Using a blender typically doesn't require hearing protection, while a quiet stroll in the park certainly does not. Protective equipment like ear plugs, safety goggles, and helmets are important for preventing injury.
Step-by-step explanation:
Hearing protection is essential in environments where noise levels are high. According to several government agencies and health-related professional associations, it is recommended to not exceed 85 dB for 8-hour daily exposures without the use of hearing protection. This means that in scenarios like operating loud machinery, attending a live concert, or being exposed to a noisy factory, hearing protection is crucial. However, there is an exception to this rule.
When considering the provided options, using a blender in the kitchen typically does not exceed safe noise levels for brief exposures, therefore hearing protection may not be necessary. On the other hand, taking a quiet stroll in the park almost certainly does not require hearing protection as the noise levels would be considerably lower than 85 dB. It's important to note that exposure to loud sounds from sources like a loud rock concert or heavy machinery can lead to hearing damage, and hearing protectors such as ear plugs should be used to prevent this.
For eye protection, wearing safety goggles or sunglasses can prevent injury, while a safety helmet is recommended for activities like bike riding and skating.