Exposure to extremely and moderately loud noise levels causes ___ hearing loss.

Exposure to extremely and moderately loud noise levels causes ___ hearing loss.

• A. immediate
• B. gradual
• C. both
• D. neither

Answer: (B)

Exposure to loud sounds over time tends to wear down the sensory cells in the inner ear, so the damage accumulates and you get a progressive, gradual loss of hearing. A single extremely loud event can cause immediate acoustic trauma, but when the exposure is ongoing or repeated at loud levels, the typical pattern is gradual deterioration rather than an instant drop in hearing. This is why gradual hearing loss is the best answer here: it reflects the common outcome of sustained or repeated exposure to loud noise. Saying it’s immediate would only apply to a one-time blast, not to regular, ongoing exposure. Saying both would imply both immediate and gradual occur in the same scenario, which isn’t the usual interpretation for repeated exposures. And there is indeed a risk of hearing loss with loud noise, so choosing neither isn’t correct.

Exposure to loud sounds over time tends to wear down the sensory cells in the inner ear, so the damage accumulates and you get a progressive, gradual loss of hearing. A single extremely loud event can cause immediate acoustic trauma, but when the exposure is ongoing or repeated at loud levels, the typical pattern is gradual deterioration rather than an instant drop in hearing. This is why gradual hearing loss is the best answer here: it reflects the common outcome of sustained or repeated exposure to loud noise. Saying it’s immediate would only apply to a one-time blast, not to regular, ongoing exposure. Saying both would imply both immediate and gradual occur in the same scenario, which isn’t the usual interpretation for repeated exposures. And there is indeed a risk of hearing loss with loud noise, so choosing neither isn’t correct.