What System of legalized discrimination designed to keep political power and economic power in the hands of Southern whites and to prevent black Americans from achieving economic and
political advancement. This system denied black Americans equal access to public schools and parks, as
well as private facilities like restaurants and hotels.?

power       the answer is a

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the answer wold be b) travel among nations should be regulated by an international organization

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

answer-the island had airfields that the u.s. military needed.