A - he introduced a new kind of tobacco
The correct answer is B) US free trade increased.
An effect of US government policies during the 1920s was that US free trade increased.
The 1920s represented a time of great prosperity for the United States. Indeed, there is a term that identifies these years in America called "the Roaring 1920s." The US industry was running smoothly, people had money or credit, so they could buy many necessary or unnecessary things and this meant more income for the US companies. Those years were the beginning of Mass Culture.
The answers are 7. a 8. d 9. c
The correct answer is C. Manufacturing.
Explanation
The new technologies developed in the North were on a par with the thousands of inventions that occurred during the Industrial Revolution. For this reason, the economic activity that benefited the most from technological advances was manufacturing, which became massive thanks to them. These new technological inventions allowed the growth of different manufacturing companies that welcomed the economy and efficiency offered by new machines and technology at that time. Therefore, the correct answer is C. Manufacturing.
