Theodosius was the last emperor to rule over both the eastern and the western halves of the Roman Empire. ... He also issued decrees that effectively made Orthodox Nicene Christianity the official state church of the Roman Empire
The answer to your question is B: It explains the organization of the federal government.
To briefly compare both terms, geography refers to the study of the physical features of the earth as well as its inhabitants or the population; whereas, geology refers to the study of the structure of the earth, its development as well as its origin.
A man who fought for rights in India through civil disobedience
