One of the main ways in which changes to the railroad helped American industries to grow is that the expansion of the rail system led to increased migration to the west, which led to more farming and agricultural output. Another would be that it led to settlements that ultimately led to business that were able to conduct business over state lines with great ease.
When dopamine levels are elevated this reward pathway reinforces the use of the drug.
Dopamine is an organic chemical that is produced in our bodies, and is related to reward-motivated behavior.
The anticipation of most types of rewards increases the levels of dopamine in the brain, and many drugs also increase dopamine as well as blocking its reuptake into the neurons follow release.
They wanted to avoid being drawn into conflicts between the global superpowers.
I would say freedom of religion
Answer:
except university professor