It is determine by brightness
We can not say that this areas are not civilized or to call them backwards. We may call them different. We can take for example the uses of animals in order to expand the commerce of their area. If we research about the use of camels, for example, we could see that it gained an special place within those who wanted to travel through many difficult areas like deserts. So in the case of camels they were not backwards, they used a different method to obtain success
Theocracy. Theocracy, government by divine guidance or by officials who are regarded as divinely guided. In many theocracies, government leaders are members of the clergy, and the state's legal system is based on religious law.
Answer: your answer for number 1 is decade millennium or century
Your answer for number 2 is a d or b .
Hope this helps.
Explanation: