Answer:
Climatic and ecological instability in the southeastern United States between AD 1300 and 1400 have been cited as the possible cause for soil depletion, particularly in Tennessee's Little River Valley. Maize agriculture provided an important food source for large Mississippian settlements and populations.
Explanation:
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One reason was the new forest laws.when the colonial govn. prevented people from entering the reserved forests,the iron smelters could not find wood for charcoal and could not get iron ore
The assassination of the Archduke Fredinand of Hungary was what triggered the start of world war 1.
Answer:
Mining played an important role in the settling of the American West. Demand for minerals rose dramatically after the Civil War as the United States changed from a farming nation to an industrial nation. Mining also led to the building of railroads to connect the mines to factories back east
Explanation:
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