Final answer:
The emergence of suburbia and the automobile culture had significant impacts on the lives of Americans in terms of mobility, urban expansion, and economic growth.
Step-by-step explanation:
The emergence of suburbia and the automobile culture greatly impacted the lives of Americans in different ways. The availability of automobiles allowed people to live farther away from the city and commute, leading to the development of suburbs and a spread-out urban landscape.
This allowed for increased personal mobility and the freedom to travel outside of traditional city limits. Additionally, the automobile industry stimulated economic growth, leading to the expansion of industries like glass, steel, rubber processing, and the oil industry.