Environmental Science 15th Edition by Scott Spoolman,Tyler Miller

Exercise 5

What are the two key concepts for this section? List three variables that affect the growth and decline of human populations. How can we calculate the population change of an area? Define the total fertility rate (TFR). How has the global TFR changed since 1955? Summarize the story of population growth in the United States. About how much of the annual U.S. population growth is due to legal immigration? List six changes in lifestyles that have taken place in the United States during the 20th century, leading to a rise in per capita resource use.