Generally speaking, "d.Language barriers" were not a problem faced by multi-ethnic countries in Africa after independence, since relative to some of the more serious problems, like genocidal violence, this was not an issue.
"Nuclear atom" or "planetary model of the atom".
Black hills become a contested territory between native Americans and whites because it was the land of Native Americans.
<h3>What do you mean by territory?</h3>
Territory refers to the land that is under the jurisdiction of a state.
The black hills that become a contested territory between native Americans and whites are due to the land that belongs to the native Americans and whites also want gold.
Thus, due to the discovery of gold in sacred native lands, the black hills become contested territory.
Learn more about territory here:
brainly.com/question/21152582
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