The answer is either Slums or Llaneros, for sure
Whenever tectonic plates move, they sometimes crash or grind against each other... the vibrations of energy thus produced during their movement sends forth a large amount of energy on the earth's crusts creating waves... this results in earthquake
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The following are the regions matched with their respective descriptions based of the geo-economic and geopolitical locations:
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1. Poor soil and first factories - Central
2. Confederate States of America, Coastal Plains American - Pacific
3. Earthquakes and volcanoes - Mountain
4. Cordillera states and Grand Canyon - Southern
5. Great Plains, last place settled - Prairie
6. Great Lakes and Mississippi for shipping goods - Northeastern
7. Covers southwest United States and the northern part of Mexico - Southwest Desert