Answer:
Public opinion plays a number of important roles in a representative democracy..... Leaders can take public opinion into account when making laws and formulating policy.
Public opinion can act as a check on leadership, as the members of the public can express their dissatisfaction with politicians who refuse to take their opinions into account and vote them out of office.
He underestimated the circumference of the world and he did not realize that there was something between Asia and Western Europe.
I don't believe so.. There might be a few that people don't know about but overall people live everywhere
Most likely the answer is culture.