1.American life changed dramatically during the first part of the nineteenth century. The United States economy changed from a subsistence economy to a market economy. What does that mean and why did it happen?

it should include

Explains the difference between a subsistence economy and a market economy.

Explains the reasons why the shift to a market economy occurred.

Briefly describes the adjustments in manufacturing, agriculture, transportation, and communication that took place in each section of the country during this period.