Beneath the surface of the ground.
MAY BE
Developing international cartels
Hope this Helped :D
Answer:
The Immigration Act of 1924 limited the number of immigrants allowed entry into the United States through a national origins quota. The quota provided immigration visas to two percent of the total number of people of each nationality in the United States as of the 1890 national census.
Explanation:
measure which was a legislative expression of the xenophobia, particularly towards eastern and southern European immigrants, that swept America in the decade of the 1920s.
Its A if economic opportunities increased why move to new lands?