Question

On December 30, 1853, the United States signed a treaty with Mexico to purchase around 30,000 square miles of land in present day southern Arizona and New Mexico. This purchase helped in completing the Southern Pacific Railroad that connected the southern region to the Pacific coast. What additional impact did this purchase have?

The migration of people from the southern region to the Pacific coast almost stopped.

The northern region witnessed rapid industrialization and connectivity.

Intercontinental trade in the southern region flourished after completion of the railroad.

The border dispute between the United Sates and Mexico was resolved.

Answer 1

The border dispute between the United States and Mexico was resolved.

Explanation: The Gadsden Purchase settled lingering boundary issues left after the Mexican–American War (Treaty of Guadalupe Hidalgo) by defining the southern U.S. border in present‑day southern Arizona and New Mexico, in addition to providing land for a southern railroad route.