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<span>40 percent of the world’s population lives in the countries that are organized around a federal principle where there is a national government and regional government.</span>
I think the answers are B,and D
only the strong will survive this can also be represented by survival of the fittest
hope this helps :D have a good day!
Popular sovereignty was also included in Article V of the Constitution, which provides the means to amend the Constitution through the elected representatives of the people.