Population growth, environmental science homework help

EVR1001C: Population Growth Activity Sheet

NAME:

We will be using two of the simulations on the INED site – The family game and The population and me. Launch each activity by clicking on the link to visit the activity page and then selecting Launch the Movie. Links are also provided in on the assignment instruction page in the course.

The family game: http://www.ined.fr/en/everything_about_population/…

Analysis:

For each question below, fully explain your answer.

1) View the introductory material on a woman’s reproductive window. Hit the lever to randomly determine the onset of sterility with menopause. Pull the lever several times and observe how this affects potential fertility. Explain your observations below.

2) Proceed in the activity and enter the age at which you think women should first be married. Then increase and decrease the age and observe how this affects potential fertility. Explain your observations below.

3) Proceed in the activity and enter the length of time which you think infants should be breastfed. Then increase and decrease the time period and observe how this affects potential fertility. Explain your observations below.

4) Enter your ideal family size and then select your preferred method of contraception. The simulation estimates the chances of unintended births by using the average failure rate of different contraceptive methods. Click the lever 10 times and record the number of unintended births each time. Advance to the final page and examine each method of contraception, clicking the lever 10 times for each and recording the number of unintended births. Record your results in the table below. Which methods had the least unintended births? Which had the most?

Method	Average unintended births	Analysis
Sterilization
Oral Contraceptive
IUD
Condom
Periodic Abstinence
Withdrawal
Amulet

The population and me: http://www.ined.fr/en/everything_about_population/…

5a) Enter your age and see how the world’s population has changed since the year of your birth. Enter the appropriate information in the table below. Change the current age to the age of a parent and a grandparent and complete the table for each.

	Current Age	Parent	Grandparent
Your Age
Population When You Were Born
The Current Population
Population Since Birth Multiplied By

5b) Are you surprised by the changes in the world’s population since your birth? What about the changes since the year of birth of your parents or grandparents?

6) Click on a region on the map on the right and see how its population characteristics have changed over your lifetime. Complete the table below for your current age. Which region’s population changed the most of your life? Which one changed the least?

Region	Multiplication Factor
North America
Latin America and the Caribbean
Europe
Asia
Africa
Oceania

7a) Advance to the next page by clicking the “My birth cohort” tab. Reset the region to “world”. This page shows you how others born in your birth year are faring around the world. See the percentage of others born the year you were that are alive in the world and each region by clicking on the map. Enter the results in the table below.

Region	% of your cohort alive today
World
North America
Latin America and the Caribbean
Europe
Asia
Africa
Oceania

7b) Are you shocked by the percentage of individuals in some regions of your age that are already dead? Explain why or why not.

8) Advance to the next page by clicking the “My place in the population” tab. Use the pull-down menu to set the geographical region to “world”. This page shows where you fall in the age distribution of the world and its regions. In other words, it shows what percentage of the population is older than you and what percentage is younger than you. Begin by seeing what percentage of the current population is younger than you for the world and each region – enter the results below.

Region	% of population younger than you
World
North America
Latin America and the Caribbean
Europe
Asia
Africa
Oceania

9) Reset the geographical region to “world” and use the slider bar to see how the percentage of the world’s population that is younger than you will change over your lifetime. Pick three years of significance in your coming life (such as turning 40 years old or retiring at age 65) and see how you fit into the world’s population in these years. Enter the results in the table below. Are you surprised by what you see? Why or why not?

	Year	% of population younger than you	Analysis
Year:	Current
Year:
Year:
Year: