Answer:
1. Immigrants played a role in transition into an urban industrial economy.
2. Immigrants makes majorly the contemporary American population. This rapidly improved the United States demographic.
3. Immigrants have played a tremendous role in modern American politics.
4. Immigrants are responsible for the development of American popular cultures.
Explanation:
Immigrants from as far back as the centuries have contributed to the History of the United States. With over 70 million immigrants since inception. With huge industrial restructuring and globalization, they however, dominated most of the traditional sources of employment. The immigrants were skilled traders, merchants,laborers, peddlers etc. in the urban areas.
In recent years, the continued impacts the immigrants have made is in the Population of the United States. As at 2016, United States had about 43.7 million immigrant. This have also helped in the Economic growth of the country.