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World Human Patterns

World Human Patterns. Population Growth. About 10 000 years ago there were about 10 million people worldwide In 1950 the population started growing very quickly In the 1990’s the worlds population grew by around 80 million people a year

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World Human Patterns

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  1. World Human Patterns

  2. Population Growth • About 10 000 years ago there were about 10 million people worldwide • In 1950 the population started growing very quickly • In the 1990’s the worlds population grew by around 80 million people a year • It is estimated that in 2050 the population will have grown to about 9 billion people

  3. Why the Increase? • The major reason for population changes, whether in an individual country or for the whole world, is the change in birth and death rates. The birth rate is the number of live babies born in a year for every 1000 people in the total population. Death rates are number of people dying per 1000 people.

  4. Natural Increase • Uses a countries birth rate and death rate to measure a countries actual growth.

  5. Factors Affecting Population • History- wars, famine, disease • Natural environment- soilcomfortableclimate • technologicaldevelopment- medicines • immigration trends/patterns)-desirable places to live.

  6. Stop here! • China Fertility articles activity

  7. Population Distribution and Density

  8. Types of distribution Patterns • Scattered- few people in a large are • Clustered- Many people live in a small area • Linear- arranged by a linear pattern, possible due to a lake or river (natural cause)

  9. Population density • A measure of how many people occupy an area of land Formula for pop.density: Population of country = people per km 2 Area in km 2

  10. Example • Population of Canada is 33 million • Our area is 9,984,670 km2 • Pop density = 33 million 9, 984, 670 km 2 = 3.30 people per km 2

  11. Stop Here! The world according to Candy bars activity

  12. Population Pyramids • The population structure for an area shows the number of males and females within different age groups in the population. This information is displayed as an age-sex or population pyramid.

  13. Population pyramids of less Developed Countries typically have a wide base and a narrow top. This represents a high birth rate and high death rate. Population pyramids of Developed Countries typically have a roughly equal distribution of population throughout the age groups.

  14. Stop Here ! • Population pyramid activity

  15. Baby Boomers • Canada's birthrate ballooned from the end of the Second World War until about 1965, thanks to improving economic conditions and a related trend over the same period toward larger families. The result was a 20-year bulge in the population known as the baby boom, a generation whose demographic influence has shaped Canada's economy and society and continues to do so as its members age and move into retirement.

  16. http://www12.statcan.ca/english/census01/products/analytic/companion/age/cda01pymd.cfmhttp://www12.statcan.ca/english/census01/products/analytic/companion/age/cda01pymd.cfm

  17. Class discussion • What influence does a baby boomer have on an economy/society?

  18. Communities in Bloom • Urbanization- the growth of urban places

  19. The Earth’s Surface: 90% of the Earth’s people live on 10% of it’s land area

  20. 8o % of Canadians live in cities or towns

  21. The Oak Ridges moraine

  22. North of Toronto, stretches from the Niagra Escarpment to The Trenton area in Eastern Ontario • 160 km long and 15 km wide • A moraine is a term used to describe eroded materials left behind by glaciers

  23. Quiz time! • Material from chapter Two and this PWPT. • Also pages 6-8 in geo text chapter one

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