Grade 9 Academic Geography - Unit 3 Practice
1. Define the “Rule of 70".
2. Calculate Doubling Times for the following countries. The first one is done for you.
Country
Canada
Afghanistan
1.1%
7.6%
Growth Rate Doubling Time
70 / 1.1 = 64 years
Chad
Ukraine
4.0%
-0.1%
Mexico 2.2%
3. What do the Doubling Time rates tell you?
4. What is Dependency Load? What age groups are included? What are the problems associated with a high dependency load?
5. Define Population Distribution
6. Define Population Density
7. Using the formula for Population Density, calculate the density for each country
2
Use the Population Density Formula to calculate the 2000 Population Densities for the following countries.
Country 2000 Population Land Area
(km 2 )
Density
(people / km 2 )
Australia
Bangladesh
Canada
Japan
Monaco
Mongolia
United States
19,169,083
129,194,224
31,281,092
126,549,976
31,693
2,650,952
257,562,673
7,617,930
133,910
9,220,970
374,744
2
1,565,000
9,158,960

Referring to your answers, how can a country have a Low Population Density?
…High Population Density?

What does Population Density tell you?
 How does density differ from distribution? Use Canada’s Population Density and your knowledge of Canada’s Population Distribution to explain your ideas.