population (continued) ms. shrieves. population pyramid review 1. why does the pyramid narrow toward...
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Population (continued)Ms. Shrieves
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Population Pyramid Review
1. Why does the pyramid narrow toward the top?
The death rate is higher among older people than among younger people.
2. Why are there a few bulges and narrower parts in the middle of the pyramid?
People in their 20s in 1961 were born during the depression, a time of economic hardship in Canada when people were having fewer children.
3. Why does the pyramid have a wide base?
35% of the population was under 15 – these are the “baby boomers” a large group of people born between 1947 and 1966 when the economy was growing and prospering.
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Population Pyramid Reviewhttp://www12.statcan.ca/english/census01
/products/analytic/companion/age/cda01pymd.cfm
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Canada’s Population: Past and FutureCanada’s birth and death rates
have been dropping steadily in the past years. ◦As a result, what is happening? Population is getting older.
- In 1951, one in 10 Canadians was over 65
- In 2020, one in 5 will be over 65
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Aging PopulationIncreasing number of elderly people put a
big strain on social and medical services
Fewer children to look after aging parents
Pressure on health care system to provide more long-term care for elderly
Cost of health services for the aged continues to rise as medical technology becomes more complex
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Dependency RatioThe portion of the population that is being
supported by the working population (People under 16 and older than 65 being supported by cohorts b/w 16 and 65 years)
Why is it important for a country to know what their dependency ratio is?
Children and older people put pressure on
medical services, education, housing and other services.
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Question:Why does an aging population
present a serious problem in the developed world?
Having an increasing number of elderly people in a population puts a great strain on social and medical services.
There are fewer children to look after aging parents.
The need for expensive long-term care and new medical technology is growing.
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Population DistributionThe way people are spread over
the Earth’s Surface
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Fun Facts35% of the world’s land area is not good
for settlementOver half the population lives on only 5%
of the worlds land90% of people live on 20% of the land2/3 of people live within 500km of the
ocean
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Population Density: The number of people in a given area.
Physical Factors: - Climate- Landscape- Resources- Soils- Vegetation- Water- Accessibility
Human Factors:- Communications- Culture- Development- Disease- Government
Policies
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Canada: 3 people per square KM
Comparison of Countries
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Pakistan: 202 people per square KM
Comparison of Countries
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Monaco: 16,000 people per square KM
Comparison of Countries
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Climate Resources Accessibility
Factors Affecting Population Density (Physical)
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Development Government Policies
Factors Affecting Population density (Human)
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1. Improve technology: Countries with higher levels of technology tend to have more developed economies.
Responses to Population Growth
2. Family planning: Reduced population reduces strain on resources, increase in standard of living.
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3. Increase resource base: Use own resources to develop itself
4. Improve Literacy rate: Improves access to higher paying jobs.
5. Opportunities for women: Leads to economic development.