Question

in the 1920s, the ___ industry replaced the railroad industry as the country's more vital and important industry

Answer 1

The Automobile

Step-by-step explanation:

Automobile industry superseded the railroad industry and changed the U.S. economy in the 1920's. Not only did it change American lives in many ways, it also led to increased growth in other industries such as oil, glass and rubber.

Answer 2

The automobile industry replaced the railroad industry as the country's more vital and important industry.