Answer:
D. developed a theory of biological racial superiority to justify slavery.
Explanation:
The economy of the Southern States was dependent on the slave labor, which was vital for the white population who controlled large tracts of land. But a major problem to justify slavery was solved by the scientific racism or biological racial superiority through which it portrayed that it is scientifically proved that the white race is superior to the race of colored people. Therefore it was installed in the minds of large slave population that they are born to serve their masters.
Mount kenya ?
explanation:
James K. Polk cited the "Monroe Doctrine" to justify Manifest Destiny, since this Doctrine held that the United States was the main power in the Americas--meaning that it was the "right" and "destiny" of the US to expand all the way to the Pacific Ocean.
The USA didn't own west of the mountains and they didn want colonist to lie there I'm pretty sure thts it idk maybe
Answer:
Agriculture, Invention of the wheel, etc
Explanation: