Respuesta :
Answer:
The gold rush, mining industries, cattle industry, but primarily because of the Homestead Act which incenticized moving west for cheap land.
Explanation:
Gold rush and mining opportunities (silver in Nevada) The opportunity to work in the cattle industry; to be a “cowboy” Faster travel to the West by railroad; availability of supplies due to the railroad. The opportunity to own land cheaply under the Homestead Act.