Which of the united states’ territorial gains was accomplished by president james polk? a. the louisiana purchase, through a purchase from france b. the florida cession, through negotiations with spain c. the gadsden purchase, through a purchase from mexico d. the mexican cession, through the mexican-american war(i found the answer, it is d)

D. the Mexican Cession, through the Mexican-American War

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the answer is: the sesquicentennial of the american civil war is an occasion to consider the legacy of that great conflict. this legacy is our inheritance, and despite many indelible features, we continue to negotiate the resolution of that conflict. the civil war was fought over slavery, but not always on behalf of slaves

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.