Natural mitigation of pollution refers to the processes in the natural environment that help to reduce or eliminate the harmful effects of pollution. Some of the most common ways that the natural environment mitigates pollution include:

1. Absorption: Plants and soil can absorb pollutants, such as heavy metals and chemicals, from the air or water and convert them into less harmful substances. This process is called phytoremediation.
2. Dilution: Natural water bodies, such as rivers and oceans, can dilute pollutants and reduce their concentration to less harmful levels. This process is more effective when pollutants are released in small quantities and over a long period of time.
3. Biodegradation: Microbes present in the soil and water can break down organic pollutants, such as oil and sewage, into simpler and less harmful compounds. This process is called biodegradation and can be enhanced through bioremediation.
4. Natural filtration: Natural systems, such as wetlands and forests, can act as natural filters that trap pollutants and prevent them from entering waterways or the atmosphere.
5. Chemical reactions: Natural chemical reactions, such as the reaction between sulfur dioxide and water vapor, can help to convert harmful pollutants into less harmful substances.
6. Predation: Predators such as birds and insects can help to control populations of organisms that cause pollution, such as mosquitoes that carry diseases.

Overall, natural mitigation of pollution is an essential process that helps to reduce the impact of pollution on the environment and human health. Understanding and harnessing these natural processes can help us to develop effective strategies for pollution control and management.