Name a biological method for odor control.

The introduction of beneficial microorganisms is a biological method for odor control because it relies on the natural processes of biodegradation to break down organic materials that cause odors. Beneficial microorganisms, such as specific bacteria and fungi, can be applied to areas affected by odors. These microorganisms consume the odor-causing compounds as a food source, effectively neutralizing unpleasant smells. This method promotes a natural and eco-friendly approach to odor control, enhancing the biological balance in the environment while eliminating the source of the odor.

In contrast, introducing harmful chemicals may create further risks to health and safety, while the application of ozone, although effective for certain odors, can lead to harmful byproducts and may not be considered a biological approach. Lastly, the use of masking agents only disguises the odor without addressing its source, which is not a biological method and does not contribute to long-term solutions for odor issues.