Answer: D. A large percentage of Americans became factory workers in cities
Explanation: The industrial revolution caused rapid urbanization in America, with people moving from the countryside to the cities in droves. ... The industrial revolution also caused a rise in unskilled labor. Prior to the 19th century, most Americans who were not employed in agriculture performed a skilled trade.
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With the firing on Fort Sumter, the American Civil War was officially upon both the North and the South. A war that lasted four years and cost the lives of more than 620,000 Americans and freed 3.9 million people from the bondage of slavery.
This made it difficult for people to cross from one side of the peninsula to the other.
Answer:
B.) the land bridge but spreading south along the Pacific coast instead of moving inland.
Explanation:
According to this theory, humans first arrived in the Americas by crossing the kueril islands, and all the other islands across the Pacific coast of what is now Alaska, Canada, and the Pacific Northwest in the U.S, all the way to Central and South America.
This theory suggests that humans inhabited the inland regions of the Americas starting from the Pacific, which contradicts the main theory (the most accepted) that establishes that humans arrived by crossing the Bering Strait.
