Answer:
Beginning around the 1890s, new industries in the U.S. Southwest—especially mining and agriculture—attracted Mexican migrant laborers. The Mexican Revolution (1910-1920) then increased the flow: war refugees and political exiles fled to the United States to escape the violence. Mexicans also left rural areas in search of stability and employment. As a result, Mexican migration to the United States rose sharply. The number of legal migrants grew from around 20,000 migrants per year during the 1910s to about 50,000–100,000 migrants per year during the 1920s.
Explanation:
The economy of the south has retained an agricultural tendency. This is based on the richness of the soil coupled with an extended growing season which allowed for biodiversity.
D) the great plains is the answer I believe to be correct. I feel the great plains needed this help.
