What is a population pyramid?

“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.

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

Stage 1: Low Growth

1.People depended on hunting and gathering for food.

2.Most of human history spent during this stage.

3.The NIR is essentially ________________.4.There is ______________ still in stage 1.

1. Brought about by the ____________________.2. ___________ Plummets while the _________

remains the same as in stage 1.3. Allowed to spread to LDRs by the ___________

______________________ (20th century)

Stage 2: High Growth

1. Brought about by _____________changes.2. Characterized by a sudden drop in the ______.3. There is still growth but not as fast as in Stage 2

Stage 3: Moderate Growth

1. The ____________________2. Brought about by an aging population,

education, and family planning3. _________________________4. Low TFR (_______________)

Stage 4: Declining Growth

1.___________because of an aging population. 2.NIR is _______ than Zero.3. Much of ____________ is entering this stage.

Stage 5: Negative Growth

The following 5 slides are population pyramids of different areas on earth. Determine what

stage they are in by how they look.

The United States of America

Bolivia

The Russian Federation

Australia

Central America