APES

Name: _________________________ Date ______________

Human Populations and Carrying Capacity WebQuest This activity is designed for you to see how the population of the Earth continues to change over the course of time. At some point in time the carrying capacity of the Earth may be reached. Use the links below to discover more about the human carrying capacity as well as to answer the corresponding questions. Click here: http://www.census.gov/popclock/ 1. What is the current world population? ______________ 2. What is the exact time right now? ___________ 3. What is the U.S. population right now? ____________ 4. What are the top five MOST populous countries? ______________________________ ______________________________________________________________________ Click Here: https://www.cia.gov/library/publications/the-worldfactbook/rankorder/2102rank.html#us Scroll down this website to find the links to answer the questions below. 7. Where does the US rank for life expectancy at birth? _________ 8. What is the life expectancy at birth in the US? ________ 9. Which country has the highest life expectancy at birth? _________________and which has the lowest? ____________________________ 10. On what continents are these countries located? Highest: ____________ Lowest: ___________

Most countries are trying to reduce their growth rate. Zero population growth means that as many people are being born as there are dying. To achieve zero population growth, each couple would need to have no more than two children (to replace the parents). Even if this number is achieved, the population will continue to grow because the parents will still live on for decades, as their children have children, and their children have children......The rate of growth in developed nations has become more constant in recent years, while many developing nations are still growing exponentially. Population density measures how crowded a population is. This measurement is always expressed as the number of individuals per unit volume. In order to calculate population density, use the following formula: number of people ÷ the area they occupy = population density

Adapted from: http://gohs.tvusd.k12.ca.us/TeacherWebs/Science/kcarrillo/global/Unit%203- %20Foundations%20of%20Diversity/Activities%20and%20Homework/Human%20Population%20WebQuest.htm

Click here for a list of least developed countries:

http://www.geohive.com/earth/pop_density1.aspx 14. Select three different countries on the list and find the following data: a. Country:

a. Country:

a. Country:

b. Population:

b. Population:

b. Population:

c. Surface area:

c. Surface area:

c. Surface area:

d. Population density:

d. Population density:

d. Population density:

Click here for similar data about the US: http://www.geohive.com/earth/pop_density1.aspx 15. Record the following data for the U.S. a. Surface area: ____________ b. Population: _____________ c. Population density: ____________ Click on the following link to see the effects of Human Population: http://howmany.org/environmental_and_social_ills.php 16. Name 5 stresses the Human Population is currently putting on the Earth. 1. ___________________

4. ___________________

2. ___________________

5. __________________

3. ___________________

17. What effects could these stresses have on the Earth and how can these affect your life? EXPLAIN in detail…