Answer:
The U.S. electrical grid is the largest interconnected machine on Earth: 200,000 miles of high-voltage transmission lines and 5.5 million miles of local distribution lines, linking thousands of generating plants to factories, homes and businesses.
Explanation:
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During the first few years of the Great Depression as people lost their jobs, homes, and farms they began to lay the blame for their poverty on the banks, since they had been irresponsible.
The main event that led the United State to take a more active role in the world affairs was World War II, since the US emerged from this war an economic superpower. It was also clear that some nation needed to "fill the void" left by the relative fall of the British Empire.
