What role did railroads play in Latin America by the 1870s

Latin America was forced to forge economies

in a world trade network already dominated by European nations. They used the railroads for this.

Explanation:

The railroads were used to export and import goods like food, silver, and other supplies needed. Due to the speed that the railroads brought things in,  Exports dramatically increased between 1870 and 1900. America used the railroads to bring goods at a speedy process, and they are used to this day. (Along with trucks and stuff)

health and medicine because people are dying from not being healthy or not strong enough medicine