Why are the tigris and euphrates rivers important to the people of the middle east? a. they are important for the shipping of oil b. they provide a passage between the mediterranean and red seas c. they are important sources of freshwater for drinking and irrigation d. they connect the persian gulf to the indian ocean

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