Question

What is the most effective approach the government can take to keep the air clean?

create and enforce regulations that limit fossil fuel burning by industries

use funds to understand why smoke and mold are causes of outdoor air pollutants

educate people about the threats to outdoor clean air from visible forms of air pollution

modify regulations under the Clean Air Act by including expensive options to reduce air pollution

Answer 1

create and enforce regulations that limit fossil fuel burning by industries

Answer 2

create and enforce regulations that limit fossil fuel burning by industries is most likely your correct answer, as two of the four options listed do not help keep air clean for obvious reasons (choice 2 and 3). choice 4 might help but the keyword expensive.