Describe the process of population change geography
Answers
Human population change is the difference between the size of the population from the beginning to the end of a certain time period. In other words,population change refers to change in the number of people during a specific time period. As a whole,the world population has not been stable; it has increased manifold. Due to this constant changing population, the subject of demographics, the statistics of how many people there are in a given population, was created. Demography can also be defined as the study of populations, and the factors that cause the most amount of population growth or decline. The main measurements of demography include: birth rates, death rates, sex ratios, life expectancy, and migration rates. All of these measures are found by a series of surveys and censuses conducted over a time period in order to compare how the population is changing.[1] Other ways to measure population demographics include the use of historical maps, aerial photographs, and census statistics.[2] One of the reasons why demographers use statistics about population change is because of the social and demographic transformations that the world experiences; significant challenges for the government and businesses will take effect depending on the degree of the population change.[3]
The most common way to calculate population change is to exam the births and deaths in a population. The number of births and deaths is directly related to how fast the population is growing, as well as how long the people will live.
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