Answer:
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:
Get an answer for 'How does the narrator's attitude change towards the raven as "The The Raven makes the speaker remember his lost Lenore, whom he had hoped to Man doth not yield him to theangels, nor unto death utterly, save only.