Answer:
Droughts, farmers overgrazing the land, etc., caused the Dust Bowl.
Explanation:
The Dust Bowl was caused by several economic and agricultural factors, changes in regional weather, farm economies. It was also caused by farmers, misusing the land, which damaged crops and killed livestock.
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The correct answer is D)"Andrew Carnegie".
Andrew Carnegie was one of the richiest people in the US. He was a businessman dedicated to the steal industry in the late 19th century.
In 1889 Carnegie wrote an article called "The Gospel of Wealth" in which he stated that rich people had to use their wealth to improve society. After selling his company in 1901, he donated most of his fortune to charities and foundations.
Roosevelt was known as "Teddy the Trust-Buster" for his strict enforcement of these acts