The late 19th-century United States is probably best known for the vast expansion of its industrial plant and output. At the heart of these huge increases was the mass production of goods by machines. This process was first introduced and perfected by British textile manufacturers.
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It means like how are social changes crated. This means like changes in how we create relationships and continue them. We dont realize, but we are changing everyday. So in this question its asking how are those changes created and how to they last?
B- because Lewis and Clark is the only one from the past. It also says an informative essay and an explanation is informative
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Millions of deaths took place in China during the Great Leap, with estimates ranging between 15 and 55 million, making the Great Chinese Famine the largest famine in human history.
Chief changes in the lives of rural Chinese people included the incremental introduction of mandatory agricultural collectivization. Private farming was prohibited, and those engaged in it were persecuted and labeled counter-revolutionaries. Restrictions on rural people were enforced through public struggle sessions and social pressure, although people also experienced forced labor.
