What are two ways that the size of a population can increase? Decrease?

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The size of a population can increase through two main ways: birth rate and immigration.

To understand the birth rate, you can gather information about the number of births in a specific period within the population. This data is often available through statistical reports, surveys, or government records. By analyzing the birth rate over time, you can determine whether the population is increasing.

When it comes to immigration, you can look for data on the number of people entering a particular geographical area or country. Immigration data is usually available from government immigration departments or census reports. By examining the number of immigrants to a population, you can assess if it contributes to its increase.

On the other hand, the size of a population can decrease through two main ways: death rate and emigration.

To determine the death rate, you can gather information on the number of deaths within a given period within the population. This data is typically accessible through statistical reports, mortality records, or governmental sources. By analyzing the death rate trend, you can assess whether the population is decreasing.

Regarding emigration, you can look for data on individuals leaving a particular geographical area or country. Emigration data is often available from government immigration departments or census reports. By examining the number of people leaving the population, you can understand if it contributes to the population's decrease.

Overall, analyzing birth and death rates, along with immigration and emigration data, can provide insights into how the population size changes over time.

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"What are two ways that the size of a population can increase?
The population growth rate is the rate at which the population changes in size. The rate of change is determined by subtracting the number of people that leave the population, through death or emigration, from the number of individuals that enter the population, through birth or immigration."Oct 27, 2013
The Human Population: Factors that Affect Population Size - Video ...
https://study.com/.../lesson/the-human-population-factors-that-affect-population-size.htm...

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