To reduce the influence of Spanish/Portuguese colonizers in the region so the USA could be considered the only major power in that area.
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The Great Depression was a period of economic slowdown in the 1930s which started with the Wall Street Crash of 1929. With no hesitations, after the Great Depression, a lot of things changed: poverty has increased, cause there wasn't money, which means that people looked for extra jobs in order to make a living and support their family. Not everything is rose colour, and there were not a lot of jobs and many citizens were unemployed. The head of the family, the father in many cases, would often leave to another town in search of work, and if he didn't succeed, families would have no money and would have to live on the street. This of course had negative effects on the family.
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Answer:
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Explanation:
I believe it is B because prehistoric people were not able to melt down metal to create tools until much later centuries.
The Bessemer process created strong but lightweight steel that made possible innovations, including skyscrapers and suspension bridges.