Question

How did railroad expansion make natural resources more available in the United States?

Answer 1

by making it possible for natural resources to be transported to different cities and towns

or B

Step-by-step explanation:

Correct on Edge

Answer 2

The expansion of the railroad system in the US made natural resources more available in the United States by making the transportation of such resources far easier and cheaper, since before the train was widely used for transportation the only other means to get the resources to factories was by steamboat or horse.