Which term describes a political institution that rules over a group of people with the same language and culture who reside within a defined territory?

a. nation
b. nation-state
c. state
d. political territory

I believe the answer is: Nation

Groups of people who live in a nation had to follow a set of regulations that created by their ruling government with clear border that separate one nation with the other.

In the earlier period, these groups might gather with different culture and language. After interacting together for a long period of time, assimilation will occurs and they start to use same language and develop a unique culture that does not exist in other nations.

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000