Grade 9 Geography

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Grade 9 Academic Geography - Unit 3 Practice
Demographics
1. Define the “Rule of 70".
2. Calculate Doubling Times for the following countries. The first one is done for
you.
Country
Growth Rate
Canada
1.1%
Afghanistan
7.6%
Chad
4.0%
Ukraine
-0.1%
Mexico
2.2%
Doubling Time
70 / 1.1 = 64 years
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
Population Density = Total Number of People living in the region / land area in km 2
Use the Population Density Formula to calculate the 2000 Population Densities for the
following countries.
Country
2000 Population
Land Area
Density
(km2)
(people / km2)
Australia
19,169,083
7,617,930
Bangladesh
129,194,224
133,910
Canada
31,281,092
9,220,970
Japan
126,549,976
374,744
Monaco
31,693
2
Mongolia
2,650,952
1,565,000
United States
257,562,673
9,158,960
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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.
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