name the four factors that affect population growth. then, explain how each factor contributes to population…

Answer:

The four factors that affect population growth are birth rate, death rate, immigration, and emigration.

• Birth rate: It is the number of births per 1,000 individuals in a population in a year. An increase in the birth rate directly adds new individuals to the population, thus contributing to population growth. For example, if a country has a high - birth rate, more babies are born, and over time, the population size increases.
• Death rate: It is the number of deaths per 1,000 individuals in a population in a year. A decrease in the death rate means fewer individuals are leaving the population, which contributes to population growth. Improvements in healthcare and living conditions often lead to a decrease in the death rate.
• Immigration: It is the movement of individuals into a population from another area. When people immigrate to a particular place, they add to the population size of that area. For instance, if a city has job opportunities, people from other regions may immigrate, increasing the city's population.
• Emigration: It is the movement of individuals out of a population to another area. A decrease in emigration or a situation where fewer people leave a population can contribute to population growth as more individuals remain within the population.

Brief Explanations:

Population growth is determined by these four factors. Births add new members, fewer deaths keep more members, immigration brings in new members, and less emigration retains more members.