Final answer:
The emergence of suburbia and the automobile culture impacted Americans in the 1950s through increased mobility, decentralization of cities, and changes in consumerism.
Step-by-step explanation:
The emergence of suburbia and the automobile culture had a significant impact on the lives of Americans in the 1950s. The automobile allowed for increased mobility and the development of suburbs outside of traditional city limits. This led to a decentralization of cities and the rise of automobile suburbs where people could live outside of the city and commute by car. Additionally, the automobile culture shaped American society and consumerism, with new shopping and living patterns emerging.