What are the four factors that produce changes in population size?

immigration

emigration
births
deaths

it was a trick question, there are five factors.

immigration
emigration
births
deaths
and marriges

(due to matramony knowledge, look on matramoneos-popultaion, a website)

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The four factors that produce changes in population size are birth rate, death rate, immigration, and emigration.

To find these factors, you can start by researching the basic definitions and concepts related to population dynamics. Birth rate refers to the number of births per unit of time within a specific population. Death rate refers to the number of deaths per unit of time within the same population. Immigration refers to the movement of individuals into a population from another area or country. Emigration, on the other hand, refers to the movement of individuals out of a population to another area or country.

To understand the specific factors affecting population size, you can analyze statistical data from reliable sources such as government agencies, research publications, or population studies. These sources often provide birth and death rates, as well as information on immigration and emigration patterns.

By examining and comparing these rates over time periods and regions, you can identify trends and patterns that contribute to changes in population size. For example, a decline in birth rate combined with an increase in death rate may result in a shrinking population, while high immigration rates can lead to population growth. It is also crucial to consider social, economic, and environmental factors that influence migration patterns and affect birth and death rates.

Overall, understanding the four factors affecting population size requires a thorough analysis of birth and death rates, immigration, and emigration patterns, which can be obtained through research and data analysis.