Answer:
Because Japan Bombed pearl harbor, thus involving america in the war
Explanation:
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B. because the Industrial Revolution mainly focused on factories and profit made from them.
Answer:
The second is the Industrial Revolution, and that involved the shift from farms to factories. ... Families were separated during the day, and children of the working class often had jobs in factories or coal mines (instead of going to school) because the family needed that income. Laws would later outlaw child labor.
They handled some of the manual labor on their fiefs.