population. everything we do effects the earth!
TRANSCRIPT
Population
Everything we do effects the earth!
World Population
Population
The total number of people in a given area.
Population’s influence
• Variety of businesses
• Transportation
• Number of schools
• Government services
Population patterns tell us A LOT
about our world!
Population Density
http://www.youtube.com/watch?v=s9dFy6xBOBM
Impact Video 1
1. How does India’s high population density affect life in its cities?
Population Density
• A measure of the number of people living in an area.
Population Density
• Measured by square mile
• Found by dividing population by the area
• The higher the number; the more crowded
Japan: 873
Australia: 7
Where are some areas people do not live at?
Where are some areas people do live at?
Birthrate
• The annual number of births per 1,000 people.
Population Changes
• 3 key factors–Birthrate–Death rate–Natural increase
Migration
• The movement of people from one place to another.
Immigration
• Immigration–Coming INTO a country
• Emmigration–EXITING a country
Impact Video 2
• Why did so many people leave their home countries to start a new life in America?
Impact Video 3
• What are at least 2 reasons that millions of Mexicans have crossed the border to live and work in the United States?
Push Pull Theory