Earth’s Human Geography

Population Notes

Where do People Live?

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

Can you guess the top 10 most populated countries in the world?

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

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

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

Continents Populous and Not Populous

Why do some continents have low population?

Bad climate Not enough rainfall Bad land quality

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*

Australia

Australia’s Physical FeaturesMostly dessertDry GrasslandLittle Rainfall and Few Rivers

Africa

20% of the world’s land13% of the worlds population

What type of land and climate does Africa have?

What is population density?

Average number of people who live in a square mile

How to you calculate population density?

Total population _________________

Total number of sq/mi

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

Studying Population Density

Population Density is an averageExample: New York City: very dense population

New York State: many fewer people per sq/mi

Studying Population Density

World population map Darker colors: heavy populationLighter colors: less population

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?

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?

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:

Population Growth Notes

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

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?

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?

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?

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

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

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?

What would the world look like with equal proportion for land mass and population?

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.

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.

Why People Migrate Notes

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

Questions to Focus on….

1. Why do people migrate?

2. What are some important population issues?

Why do people migrate?

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

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

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

Did you or any members of your family or your ancestors immigrate to the US? Why?

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?

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

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?

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

Waste Dump: Jakarta, Indonesia

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

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

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: