Factors Affecting Population Change

Population change is determined by the difference between the birth rate and the death rate of a population. There are two factors that affect population change for a particular area:

1. Natural Change
Natural change refers to the difference between the number of births and the number of deaths in a population. If the number of births is higher than the number of deaths, the population will increase. If the number of deaths is higher than the number of births, the population will decrease.

Factors that influence natural change include:

- Fertility rates
- Life expectancy
- Age distribution
- Health care facilities
- Environmental factors

2. Migration
Migration refers to the movement of people from one place to another. Migration can either increase or decrease the population of a particular area.

Factors that influence migration include:

- Economic opportunities
- Political instability
- Natural disasters
- Quality of life
- Social factors

Zero Population Growth
Zero Population Growth (ZPG) is a concept that refers to a population that is neither growing nor declining. ZPG occurs when the birth rate and death rate of a population are equal. This can be achieved through family planning, education, and other measures that promote reproductive health.

Conclusion
In conclusion, population change is determined by the difference between the birth rate and death rate of a population. Natural change and migration are the two factors that affect population change for a particular area. Zero Population Growth can be achieved through family planning and other measures that promote reproductive health.