1. Chapter 5 Section 3 Human Population Growth
Objectives:
-Describe how the size of the human population has changed over time
-Explain why population growth rates differ from country to country
AZ Science Standard: Analyze social factors that limit the growth of a human population

2. Historically, like the populations of many other living organisms, the size of human population tends to increase with time

3. Human Population Industrial Revolution Begins Agriculture Begins
Plowing
And
Irrigation
Bubonic
Plague

4. The study of human populations
Demography:
The study of human populations

5. Demography Continued:
Birthrates, death rates, and the age structure of a population help predict why some countries have high growth rates while other countries grow more slowly

6. Demographic Transition:
Dramatic change in birth and death rates

7. Reasons for High Birth and Death Rates:
Birth Rate is high as a result of:
Lack of family planning
Need for workers in agriculture
Religious beliefs
Children as economic assets
Death Rate is high because of:
High levels of disease
Famine
Lack of clean water and sanitation
Lack of health care
War
Competition
Lack of education

8. U.S. Population Rwandan Population Males Males Females Females
Questions regarding age structure diagram