what humans produce as waste comes back to us. Explain this statement with an example each in terms of air water and land pollution.

Pollution is the introduction of harmful materials into the environment. These harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash. They can also be created by human activity, such as trash or run off produced by factories. Pollutants damage the quality of air, water and land.

Explanation:

I majored in Geography