The Demographic Transition Model
The demographic transition model is a way of understanding how populations change over time. It describes the stages that a country goes through as it develops and how these stages affect the birth rate and death rate. In the first stage of the model, both the birth rate and the death rate are high, so the population grows slowly. This is because many children are born, but many people also die from disease and poor living conditions. In the second stage , the death rate starts to decline due to improvements in healthcare and sanitation. However, the birth rate remains high, so the population grows quickly. In the third stage , the birth rate starts to decline as people begin to have fewer children due to changes in lifestyle and more access to family planning. The population growth slows down. In the fourth stage , the birth rate and death rate are both low, and the population growth is stable. This is because people are having fewer children and are living longer due to advance...