DemographyEssential Questions

1. What factors influence where people settle?

2. Is the world’s population growing too fast?

History of Human Settlement

People lived nomadic lifestyles.

Agriculture caused people to settle in areas near water.• Nile Valley, Mesopotamia, Indus Valley, Huang He Valley

Physical Factors Influencing Where People Live

People tend to settle in temperate, fertile, non-mountainous areas, such as valleys and plains.

People settle near sources of fresh water.

People settle not too far from oceans.

Fewer people settle in dry, wet, cold or mountainous areas.

Human Factors Affecting Settlement

Political and Economic Centers: People move to areas of political or economic importance, such as capital cities.

Transportation Routes: People often settle along transportation routes, such as coastlines, rivers, canals, railroad lines, or roads.

Human Factors Affecting Settlement Cont’d

Technology: Improvements in technology can expand areas of settlement.

Urbanization: Since the start of the Industrial Revolution, urbanization (people moving from the countryside to cities) has increased greatly.

Most Populous CountriesNumbers as of 2000 Census

1. China 1.3 Billion2. India 1 Billion3. United States 296 Million4. Indonesia 242 Million5. Brazil 186 Million

Most Populous CountriesNumbers as of 2011 Census

1. China 1.346 Billion2. India 1.241 Billion3. United States 312 Million4. Indonesia 238 Million5. Brazil 197 Million

Where would you live a long life?

The 10 countries with the longest life expectancy

Hong Kong 85 Japan 79 Canada 78 Iceland 78 Greece 78 Italy 78 France 77 Channel Islands 77 Australia 77 Austria 77

1. In which country do people live the longest? 2. Why is the U.S. not on this list? Guess: How long are you expected to live?

Where would you live a short Life?

The 10 countries with the shortest life expectancy

Guinea-Bissau 39 Sierra Leone 43 Afghanistan 43 Guinea 44 Malawi 44 The Gambia 45 Angola 46 Uganda 46 Rwanda 46 Niger 46

In which country do people have the shortest lives?

2. How long is a baby born in Guinea-Bissau expected to live?

3. How much shorter a life does a person live

in Guinea-Bissau than in Hong Kong? Hong Kong 85 Guinea 39 46 years

Population Density Maps A map showing

how many people live per square mile in a given area. • It shows the distribution of population in that area.

Population Density Maps Uses dots to indicate the location of

major towns and cities.• Dots are also used to show the concentration of where people live.

Population Pyramids These compare the numbers of males

and females in a particular country.• Stacked bars indicate the number of people for each age group.

• They are used by demographers to show the age distribution in a society.

Trends in World Population Growth

The world’s population has steadily increased over time.• Pre-Industrial: The world’s population grew

slowly.• After Industrial Revolution: The world’s

population grew rapidly. Europe and N. America grew fastest due to new farming methods and industrialization.

Trends in World Population Growth Cont’d

European Colonization: As Europeans colonized new areas, they spread new farming methods and modern medicine.

Current Trends:• Population growth has

greatly accelerated.• China, India, and Africa

are struggling to reduce birth rates to bring population under control.

Review1. Identify 2 ways you would expect

Japan and Iran to have different needs because of the different ages of their populations.

Japan will have to cope with an aging population so health services for the elderly will be in demand. Iran’s population is very young. Iran’s life expectancy is very short.

Review2. Physical features often influence where

people live. Which type of environment typically has the highest population density?

A. hills, mountains and plateausB. Flat, fertile plains and river valleysC. Wet bogs and swampsD. Dry and barren desert regions

Answer: B

Review3. Which of the following is the most likely effect

of building a railroad to reach an area rich in natural resources?

A. Railroad owners take control of the area.B. The number of people that settle in the area increases.C. There is a sharp increase in movement away from the

area.D. Government leaders close the area to future

settlement.

Answer: B