Answer:
in sub-Saharan Africa AIDS is the leading killer and a large reason for the high transmission rates is because of the lack of education provided to youth. When infected, most children die within one year because of the lack of treatment.
In the Spanish colonies in America the colonists created a kind of caste system based on ethnic hierarchy which of course put the Spaniards on top. The rest of ethnic groups ranked based on their resemblance of the Spaniards so for example the Indians would be ranked higher than Blacks as they more resembled the Spaniards.
I would have to say technology is using fewer resources to manufacture goods more efficiently.
Historians need to be worried about reports with bias in them because their reports do not accurately reflect history. Historians need to take many reports <span>into consideration when studying history.</span>