The four variables that govern changes in population growth are as follows:
- Birth (B) or natality.
- Death (D) or mortality.
- Immigration (I).
- Emigration (E).
What is Population Growth?
Population growth may be defined as the increase in the number of members of any species on the surface of the earth.
Above are four demographic factors that affect population growth. Amond which birth and immigration affect positively while death and emigration affect the population growth negatively.
Therefore, it is well described above.
To learn more about Population Growth, refer to the link:
https://brainly.com/question/2578091
#SPJ2
