Machines were being used on farms around this time, so less people on farms were needed. So these people moved to cities for work.
Hope this helped :)
John Adams was an American statesman, attorney, diplomat, writer, and Founding Father who served as the second president of the United States, from 1797 to 1801. Hope it helps lol
Explanation:
The answer is C. is involved in activities that center around a narrowly defined subject.
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For number 3 the answer is 60,000 in the year 1800 and in 1850 it was 590,000.