What can you conclude about the population of africa based on this information?

How does federalism limit the power of government in the united states? a. it requires the national government to share power with state governments. b. it ensures that one state cannot make laws that affect all the other states. c. it requires the three branches of the national government to share powers. d. it allows the judicial branch to rule on laws that affect the entire country.

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Sailors went to special school to learn how to use the new technology that would them sail far distences. the school we know about was