Explain the factors that causes changes in the size of population ?
Answers
Answer:
Changes in birth and death rates and migration all have an impact on whether the population of a region or country is increasing or decreasing. Changes in birth and death rates affect the natural increase or decrease of a population. Migration can also affect this along with the structure of the population
1. The birth rate isthe number of live births per 1000
people while the death rate isthe number of deaths per 1000 people.
2. These are the natural causes of population change.
3. When the birth rate is higher than the death rate, population increases.
4. When the death rate is more than the birth rate, population decreases. When the two rates are equal, the population remains constant. Thus, the birth and death rates affect the balance of population.