In the past, there were 20 times more children than older people. then there were 7 times more people under age 15 than over age 64. currently, there are 3 times as many children as there are elders. these changes in the age make-up of the population are referred to as a

"demographic shift"

Explanation:

According to my research the changes in the age makeup of the population as shown in the question are referred to as a "demographic shift". This phenomenon of theory as some may call it is when the demographic goes from a population with high birth rates and high infant death rates to a population of low birth rates and low death rates. Leading to statistics like those shown in the question.

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where is the map so i can

the anti federalists was a movement that was opposed to the creation of a us federal government. although they were not as organized as the federalists, they also had a large group of leaders, especially in state politics.

the statement "now, in a large extended country, it is impossible to have a representation, possessing the sentiments, and of integrity, to declare the minds of the people” represents the concerns of the anti federalists.

they strongly believed that the federalists were representing the interests of aristocratic elements of society at the expense of the majority of ordinary people, who lived in a rural society.

their fear for the creation of a strong federal government and the president’s power of veto in their opinion would create a tyrannical rule that would dominate the people. they defended the importance of restraining the government’s power towards people at any cost.