Which of the following is a method of managing noise pollution exposure?

Hearing protection measures are a key method for managing noise pollution exposure. This approach involves using devices such as earplugs or earmuffs that are specifically designed to reduce the intensity of sound that reaches the inner ear. By blocking or absorbing sound, these measures can effectively protect individuals from the harmful effects of excessive noise, which can lead to hearing loss and other health issues over time.

Additionally, hearing protection is particularly important in environments where noise levels exceed safe thresholds, such as construction sites, factories, or during loud recreational activities. Implementing these protective measures can substantially lower the risk of auditory damage and improve overall well-being in noisy environments.

The other options, while potentially related to environmental comfort and health, do not directly address the management of noise pollution. Improving air circulation and increasing indoor temperature pertain to air quality and thermal comfort rather than sound management. Decreasing the number of sound sources could theoretically reduce noise levels but is more of a preventative measure and often is not feasible in many real-world scenarios. Hence, hearing protection measures stand out as a direct and practical way to manage exposure to noise pollution.