The document describes the four stages of the demographic transition model: Stage 1 - Both birth and death rates are high due to diseases, famine, lack of infrastructure. Stage 2 - The death rate begins to fall due to improvements in sanitation and medicine. The birth rate remains high due to social and economic factors. Population growth is rapid. Stage 3 - The birth rate starts to fall due to increased access to family planning, fewer child deaths, urbanization, and social/economic changes. Population growth slows. Stage 4 - Both birth and death rates are low, resulting in low population growth or steady population levels, as seen in developed nations today.

1. Demographic transition model

2. Sweden

3. Stage one Reasons for a high death rate include : 1. Diseases such as Cholera and Bubonic Plague.

4. 2. Famine and Malnutrition.

5. 3. Lack of clean water and sewerage facilities(alcantarillado).

6. 4. Lack of medical care and drugs

7. Stage 2 - The birth rate remains high and the death rate begins to fall At the start of stage 2 both birth rate and death rate remains high.

8. Reasons for a high birth rate are:

9. 1. Economic - many children mean more workers in the field.