Answer:
The Crusades
With the Seijuk Turks of central Asia bearing down on Constantinople, Emperor Alexius I turned to the West for help, resulting in the declaration of “holy war” by Pope Urban II at Clermont, France, that began the First Crusade
Answer:
social structure , is correct
One of the most important was climate changes. As climate changed, nomads had to find new places to migrate to which led to people going to areas that were uninhabited before. Another was the development of agriculture which more or less ended the nomadic way of life when people started settling.
B) The mining and cattle ranching industries increased in the West.
Railroad made transporting resources and goods to cities to be manufactured and processed which encouraged growth in the western industries.
Mining for gold, silver, iron, and tin contributed to production of manufactured goods. The ability to make money off of the mining industry attracted settlers. Ranching also increased in production with land opening up in the southwest and railroads connecting ranching areas to major meatpacking cities, like Chicago.
