Why was it important to establish the Clean Air Act? Select three options.

emphasize cost-effective methods to protect the air

encourage people to study the effects of dirty air on human health

determine ways to reduce the number of premature deaths per year

create a

regulation that makes any activities that pollute the air illegal make sure that no

government activities polluted the local atmosphere

The Clean Air Act was important because it emphasized cost-effective methods to protect the air; encouraged people to study the effects of dirty air on human health; and created a regulation that makes any activities that pollute the air illegal.

Explanation:

the correct way to cite this in apa format is the following: smith, d. (2001). world environment day. retrieved from  

apa (american psychological association) style is most commonly used to cite sources within the social sciences.  

quotation styles can differ by use and by styles and every subject has its own unique style of quotation.

explanation: