To analyze data more efficiently
Answer:
D. The cost of many goods made in the United States decreased.
The Great Wall of China is the longest building on earth with a length of 13,170 miles. Made from a combination of brick, stone, wood and other materials, it was originally constructed primarily to serve as a defence against the nomadic invasions from the north that threatened Chinese states / empires.
The north helped the south with reconstruction after the south lost the civil war by surrendering to the North which was run by Abraham Lincoln.
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The fundamental unit that you count to gauge how good a city is not the number of people, but the number of connections.
