Well the modern study of hsitory helps us not make the same mistakes as we did in earlier history.
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Answer:
A.) Carpetbagger
Explanation:
"Carpetbagger" was the term used to refer to natural citizens of northern states who moved to some southern state, after the secession war, during the southern construction. The aim of the Carpetbaggers was to use reconstruction and the disadvantaged people of the south to make money, or to gain political influence through several different activities. As you may already know, the southerners were very resentful to the northerners after the war, which made it difficult for the Carpetbaggers to achieve their goals, but they had help from the "Scalawags" or are white southerners who cooperated with the northerners throughout reconstruction.
I believe that they used higher tec on the dry soil, it became a problem where the air had so much dirt in it that the dust bowl hapend. this is what i learned, hopefully this helps
They declared war (not by congress) on terror and we fought a war in the Middle East which we shouldn't have done because we more or less lost.