Question

what was the order of steps taken by the united states to clean the air?
○ enact the clean air act, establish funding to study how to clean the air, create the epa, and find cost - effective ways to keep the air clean
○ establish funding to study how to clean the air, enact the clean air act, create the epa, and find cost - effective ways to keep the air clean
○ find cost - effective ways to keep the air clean, establish funding to study how to clean the air, create the epa, and enact the clean air act
○ create the epa, enact the clean air act, find cost - effective ways to keep the air clean, and establish funding to study how to clean the air

Explanation:

The United States first established funding to study air - cleaning methods. Then, the Clean Air Act was enacted. After that, the EPA (Environmental Protection Agency) was created. Finally, cost - effective ways to keep the air clean were found. This sequence makes logical sense as you need to study (funding) before creating laws (Clean Air Act), then have an agency (EPA) to enforce and further develop (finding cost - effective ways).

Answer:

establish funding to study how to clean the air, enact the Clean Air Act, create the EPA, and find cost - effective ways to keep the air clean