Answer: Farming
Explanation:
The Great Plain is a large area of flat land in North America. Due to it being a huge vast of land, it typically supports farming and cattle ranching and this contributed to erosion that is, when the top surface of the land is being washed off.
Therefore, the option that directly contributed to soil erosion on the Great Plains in the 1930s is farming.
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Albert Sidney Johnston's death (April 1862)
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<span>Union victory in Battle of Antietam (September 1862)</span></span>
The American Expeditionary Forces<span> (</span>AEF<span>) was the </span>expeditionary force<span> of the </span>United States Army<span> during </span>World War I<span>. It was established on July 5, 1917, in </span>France<span> under the command of </span>Gen. John J. Pershing<span>.</span>
