How did the invention of the cotton gin impact the american economy?
a. the cotton gin cotton become the south’s most important cash crop.
b. the cotton gin enabled the united states to import more cotton from overseas.
c. the cotton gin boosted manufacturing because it could spin cotton into cloth.
d. the cotton gin made it possible to grow cotton in the north and midwest.

List three reasons why explorers began to explore new, and old areas. [[ps: doesn't explicitly say where. i think it's more in general.

Which option best describes how the printing press transformed european society? (a) prior to the printing press, the catholic church hand-copied texts and disseminated them to peasants. (b) prior to the printing press, the church of england did not allow peasants to learn to read. (c) prior to the printing press, the orthodox church recited luther’s “95 theses” aloud to peasants. (d) prior to the printing press, knowledge was reserved primarily for nobles and clergy.

Wha industry did the refrigerated rail car impact the most