D. The United States and Soviet Union.
Japan was nuked and Germany lost the war.
Answer:
I guess that the answer would be the 'political boundaries'
Age distribution. A model used in population geography that describes the ages and number of males and females within a given population; also called a population pyramid. 298,767,311. Carrying capacity. Largest number of people that the environment of a particular area can sustainably support
By rename do you mean turn into an improper fraction?
if so, it is because without turning it into an improper fraction, you cannot subtract 3/4 from 1/4 because you would get a negative answer and that would be incorrect