Aform of government that seeks to build a strong country by emphasizing a national or ethnic identity is

Nationalism is your answer. Nationalism is a system created by people who believe their nation is superior to all others. Most often, this sense of superiority has its roots in a shared ethnicity. Other countries build nationalism around a shared language, religion, culture, or set of social values.

I know this is a bit late for your question but I hope it helps future people! :-)

i'm free to do it

explanation:

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.