write a short note on change in population
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The most common way to calculate population change is to exam the births and deaths in a population. ... Farmers were not able to produce enough to meet the food requirements for the growing population, causing many deaths. As a result of this, the total increase in population was very low.
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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.
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