Final answer:
The emergence of suburbia and the automobile culture impacted the lives of Americans in terms of commuting, mobility, and economic growth.
Step-by-step explanation:
The emergence of suburbia and the automobile culture had a significant impact on the lives of Americans in different ways. Firstly, the widespread use of automobiles allowed people to commute longer distances to work, which led to the growth of suburban areas as people could live outside of city centers. This resulted in the development of automobile suburbs, where private vehicles replaced mass transit systems. Secondly, the availability of cars provided Americans with increased mobility and freedom, enabling them to travel long distances for leisure and vacation purposes. This led to the development of motels, restaurants, and other services along the newly built roadways, boosting the economy.