Earth’s Human Geography Population Notes. Where do People Live?
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Transcript of Earth’s Human Geography Population Notes. Where do People Live?
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Earth’s Human Geography
Population Notes
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Where do People Live?
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Key Terms Population
Population Distribution
Demographer
Population Density
Total number of people
Way population is spread throughout earth
People who study world’s population
Average number of people per square mile
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Can you guess the top 10 most populated countries in the world?
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1. China 1,336,718,015
2. India 1,189,172,906
3. USA 313,232,044
4. Indonesia 245,613,043
5. Brazil 203,429,773
6. Pakistan 187,342,721
7. Bangladesh 158,570,535
8. Nigeria 155,215,573
9. Russia 138,739,892
10. Japan 126,475,664
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Why is Population Distribution Uneven?
People are choosy What determines a good
location1. Rivers and Lakes
2. Flat, fertile soil
3. Flat plains and coastal areas
4. Reasonable climate
5. Adequate rainfall
6. Natural resources for building and producing
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89% of people live on which 3 continents in the world?
Asia, Europe, North America They total only 53% of
the world’s land
Why do you think this is
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Continents Populous and Not Populous
Why do some continents have low population?
Bad climate Not enough rainfall Bad land quality
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Example:
Australia: roughly size of USA• Population of Australia: 19 million• Population of USA: 301 million
*Population of Australia is about the population of New York*
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Australia
Australia’s Physical FeaturesMostly dessertDry GrasslandLittle Rainfall and Few Rivers
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Africa
20% of the world’s land13% of the worlds population
What type of land and climate does Africa have?
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What is population density?
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Average number of people who live in a square mile
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How to you calculate population density?
Total population _________________
Total number of sq/mi
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Population Density
What is the difference between high density and low density?
High density: people are crowded togetherExample: Japan:
25,000 people per sq/mi
Low density: people are not crowdedExample: Canada: 9
Example: Canada: 9 people per sq/mi
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Studying Population Density
Population Density is an averageExample: New York City: very dense population
New York State: many fewer people per sq/mi
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Studying Population Density
World population map Darker colors: heavy populationLighter colors: less population
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Studying Population Density
People tend to live on level areas near bodies of water
Example: Nile RiverLocation: AfricaLand around the Nile: high populationLand not near the Nile: Low population
Why do you think this is?
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Studying Population Density Some people do live in “uncomfortable
areas”Examples:
Inuit and Sami live in frozen Arctic RegionsHerders in desert regions of Africa and Asia
These people have developed ways of life suited to their environments
Why do you think this is?
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Lets Review…..
1. How do physical characteristics of a country (land type, access to water) affect its population distribution?
2. Why is it important to understand population density as an average?
3. A large percentage of the world’s population lives on a small percentage of the worlds land. Why is this?
4. Would you rather live in a place where the population density is high or low? Explain.
5. Name a city, country and continent with a dense population
Answers:
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Population Growth Notes
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Key Terms
Birthrate
Death rate
Life expectancy
Green Revolution
Number of live births each year per 1000 people
Number of deaths each year per 1000 people
Average number of years people live
Changes in agriculture that have greatly increased the world’s food supply
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Population Growth is Worldwide
1960: World Population was 3 billion2000: World Population was 6 billion9/23/13 at 8:55 AM: World Population
is:7,180,325, 610
What are the top 3 most populated countries in the world?
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Population Birthrate and Death rate
Population grew at different rates throughout history
Population grown depends on birthrate and death rate
100 years ago in USA: men and women lived less than 50 years.
Why do you think that happened?
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Life expectancy timeline
Analyze the moving timeline of the world’s life expectancy and think about the following questions: Did life expectancy steadily increase throughout
history?Why?
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Why is the earth’s population growing so quickly? Birthrate increased and Death
Rate slowedUS: average life expectancy for
women is 80 and men is 73Reasons for this:
New Farming MethodsScientific advancement in
medicine and health
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What are challenges of rapid population growth?
1. Public transportation and sanitation inadequate
2. Shortage of fresh water
3. Shortage of food supply
4. Shortage of energy
5. Job shortage
6. Overcrowded schools
7. Decent housing is scarce and expensive
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Most visible in South Asia
Home to ¼ of world’s population
Also home to ¼ of world’s poor
1 out of every 14 children born will die before age one
Where is rapid population growth most common?
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What would the world look like with equal proportion for land mass and population?
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The Challenges of Population Growth
Rapid growth affects the environment Forests in India and Pakistan are disappearingAffects clean air supply
The earth’s resources must now be shared by six times as many people than in earlier times.
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Lets Review….
1. Why has the world’s population increased so dramatically in the last four or five decades?
2. How have science and technology contributed to the growing population?
3. The world’s population has been growing at a fast rate. What are some of the dangers of a rapidly increasing population?
4. World Hunger is one of the major concerns caused by rapid growth population. Write one or two suggestions to help solve the problem.
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Why People Migrate Notes
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Key Terms
1. Migration:
2. Immigrant:
3. “push-pull” theory:
4. Urbanization:
5. Rural area:
6. Urban area:
moving from one place to another
people who leave one country and move to another
certain things in their lives “push” them to leave and certain things in a new place “pull” them.
movement of people to cities and the growth of cities
villages and countryside areas
cities and busy towns
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Questions to Focus on….
1. Why do people migrate?
2. What are some important population issues?
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Why do people migrate?
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Migration: The Movement of People
For centuries people have moved from one place to another
Millions of immigrants come to US Push-Pull theory
Push: religion, landPull: Hope for a better living
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Irish Immigrants in the USA
1840’s and 1850’s1.5 million left Ireland for the USA
Why did they leave? Potato Famine 1840’sHunger and StarvationEngland ruled Ireland harshlyFew opportunities for job improvement
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Vietnamese Immigrants to the USA
Southeast Asia to USA Vietnam War, Communism caused many
to fleeOther countries would not accept these
people but the USA did
Push-Pull Theory: Push: communismPull: USA welcoming immigrants
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Did you or any members of your family or your ancestors immigrate to the US? Why?
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Other Kinds of Immigration
Australia: colonized by English; convicts sent there to serve sentences, some stayed
War forces migrationPeople helping their families forces
migration
Can you give an example of the two above?
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The World Becomes more Urban
Migration occurs within a countryAmericans migrate more than citizens of
any other countryPopulation shift in the US from
northeastern states to southeastern and southwestern states.
Problem: southwestern cities having enough water supply
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The World Becomes More Urban
Biggest challenge today: people moving from farms and small villages to cities
Urbanization has grown
What pushes people from rural areas?What pulls people to cities?
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Growing Cities, Growing Challenges
IndonesiaPast: many people were farmers, fishers and
hungersThey lived in rural areas
Present: they are now moving to urban areas
*Example: Jakarta (capital of Indonesia)1978: population 4.5 million 2000: population: 11 million
2015: population: expected 21 million
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Waste Dump: Jakarta, Indonesia
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Growing Cites, Growing Challenges
Sao Paulo, Braziltoo many people coming too fast Cities cannot provide:
HousingJobsSchools: crowded HospitalsTransportation: 4 million buses and cars pollute airOther services neededFewer farms: less food Overcrowding everywhere: huge problem
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Growing Cities, Growing Challenges
If cities are so overcrowded, why would people still go there?Seeking a better lifeLooking for jobsLooking for decent housingLooking for good school
Most want more opportunities for children
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Lets Review….
Why do people migrate?
Why have some immigrants
left their homelands to live in the United States? (list at least 3)
Describe how urbanization
happens.
List at least 3 examples for
push factors and pull factors.
Push- why people leave areas Pull: Why people come to new areas
Answers: