Answer:
D) reduce or eliminate combustion of any kind to improve air quality.
Explanation:
Pollutants from combustion are gases or particles such as carbon monoxide and nitrogen dioxide and are related to cases with the way in which internal spaces are heated. They originate from the materials that are burned, heaters, wood and gas stoves, ovens, and water heaters along with fireplaces. Decreasing this type of pollutants would greatly improve air quality.
