Answer: uncontrollable population movements; new epidemic diseases; failing states leading to increased warfare; collapse of trade routes
Explanation:
The answer is by <span>dividing government into the legislative, executive, and judicial branches.
</span>
Railroads played an absolutely crucial role in the Industrial Revolution, since they made for the incredibly fast transfer of goods such as iron and steel that were used to build things--not to mention the transport of the workers themselves.
