Which natural resource became more available to the american public as a result of railroad expansion
a) natural gas
b)wood
c)coal
d) water

i'm positive it isn't "b" or "d"
i feel like it's "c" but i have no idea

I believe the answer is: c. Coal

As a result of rail road expansion, we discovered that coal can be used as one of the most cost efficient source of energy at that time. Combined with us not knowing the environmental effect that created after using coal, it became one of the major industries in united states during that period of time.

what the first or next guys says

the results of roman expansion produced social conflict and civil war. julius caesar gained power and became a dictator but was then assassinated. the reign of augustus began a long period of imperial rule and peace in the roman empire. rome faced the problems of how to maintain peace, law, and order.

hope this !

brainliest?