What is a population pyramid ?

1. What is a population pyramid?

2. “A population pyramid is a graphical illustration that shows the distribution of various ____________________as well as the __________________, the number of males per hundred females and the dependency ratio, the number of people who are too old or too young to work.

3. What are some population characteristics of Sudan’s population? What does this tell you about the country?

4. Stage 1: Low Growth • People depended on hunting and gathering for food. • Most of human history spent during this stage. • The NIR is essentially ________________. • There is ______________ still in stage 1.

5. Stage 2: High Growth • Brought about by the ____________________. • ___________ Plummets while the _________ remains the same as in stage 1. • Allowed to spread to LDRs by the ___________ ______________________ (20th century)

6. Stage 3: Moderate Growth • Brought about by _____________changes. • Characterized by a sudden drop in the ______. • There is still growth but not as fast as in Stage 2

7. Stage 4: Declining Growth • The ____________________ • Brought about by an aging population, education, and family planning • _________________________ • Low TFR (_______________)

8. Stage 5: Negative Growth • ___________because of an aging population. • NIR is _______ than Zero. • Much of ____________ is entering this stage.

9. The following 5 slides are population pyramids of different areas on earth. Determine what stage they are in by how they look.

10. The United States of America

11. Bolivia

12. The Russian Federation

13. Australia

14. Central America