Historians look for causes and effects that help to explain how and why events happened.
Answer:
Machines
Explanation:
Machines became widely used in farming, and consequently, farms required fewer workers. Large, technologically advanced farms replaced subsistence farms. The Industrial Revolution demonstrates an idea known as economies of scale. According to this principle, increased production of goods leads to increased efficiency.
The answer is The Panic of 1819.
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The answer is
B Hinduism and Buddhism
Answer:
President John F. Kennedy