In a three- to four-page paper, briefly analyze important recent changes in the United States. You should provide two recent changes for each category. a. Economic b. Social c. Political d. Technological e. Ecological. The length and formatting requirements include: Three to four pages in length, not including cover and reference pages. Include a cover page, section headers, an introduction, a conclusion, and a reference page. Formatted according to APA Cite a minimum of three sources