Prentice Hall Biology

5�3 Human Population Growth

1.	Key Concept Describe the general trend of human population growth that has occurred over time.
2.	Key Concept What factors explain why populations in different countries grow at different rates?
3.	What is demography?
4.	Describe the demographic transition and explain how it might affect a country's population growth rate.
5.	Critical Thinking Evaluating Why do you think age-structure diagrams can help predict future population trends?

Explanatory Writing

Write a paragraph on the trends in the growth of world population from 1950 to 2050. Be sure to distinguish between population growth and population growth rate. Hint: Refer to the figure World Population Growth to help with your explanation.