Why did the spanish begin using enslaved africans instead of enslaved american indians to work on plantations?

plantation owners could trade goods for africans but not american indians.

european diseases had killed much of the american indian population.

there was too much resistance among american indians.

american indians fled to the north and became fur traders for the french.

a)scientists

explanation:

the national defense education act had two main goals. the first one was to provide personal that was oriented to defense, including scholars, engineering students and so on. the other goal was to provide financial assistance for the students who would be enrolling at colleges and universities in the 1960s.

answer: an oligarchy is a political system in which the government is run by a group of noble families, or the elite wealthy members of a society. a present day oligarchic government is iran.

explanation: