Final answer:
The market revolution significantly altered the American economy and society in the 19th century, making the claim that it brought many social and economic changes to the United States true.
Step-by-step explanation:
The market revolution was a pivotal period in American history when the economy witnessed a massive transformation due to industrialization, advances in transportation, and innovations in communication and production methods. This era, largely occurring in the 19th century, fundamentally changed the nature of work, commerce, and the social fabric of the United States. To the statement that the market revolution brought many social and economic changes to the United States, the answer is True.
As these changes took hold, they facilitated the growth of the market economy, where goods were produced for a broader market rather than for personal consumption or local trade. The market revolution also impacted gender roles and the division of labor, leading to the notion of separate spheres and affecting women's roles in society. It fostered the growth of a middle class that differentiated itself economically and socially from the working class, further developing a distinct American social structure.