Usually people would settle wherever they could find rich soil and a water source. so mountains were one of the main places that people settled in early civilization.
Their population declined because few Africans in child-bearing years remained on the continent.
For the answer to the question above, the Second Industrial Revolution<span> witnessed the expansion of electricity, petroleum, and steel. So believe the answer is </span><span>C petroleum,electricity,and an inexpensive way to produce steel.
I hope my answer helped you. Have a nice day!
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The Tenth Amendment says "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the People.". Federalism is the relationship between US State Governments to the Federal Government.
Any good federalist governments share government power between the central government and the state/local governments, which are outlined in the Tenth Amendment.
