Population Growth and Population Movement
-Approximately 7 billion people on the planet Population Grown due to- -Lowering death rate- oBetter health care oBetter living conditions oMore plentiful food supplies - Birth rates grown- oAsia oAfrica oLatin America
-More food is needed for growing population oAdvances in technology help increase food Improved irrigation systems Hardier plants -Severe Lack of Food oFamine- caused by warfare and crop failures -Severe Lack of Water -Lack of enough Housing -More Services such as: oHospitals oSchools
-30% of Earth’s surface is land oOnly 50% of the land on Earth is livable
-People are not evenly distributed around the world oPeople choose to live where there are- Fertile soil Mild Climates Natural Resources Water Resources Rivers Coastlines
-2/3 of the population is clustered o5 Regions- East Asia South Asia Southeast Asia Europe Eastern North America oMore People Live near- Cities Jobs Resources
-Average # of people per sq. mile oTotal Population %/Total Land Area -Population Density Represents oAverage # of people; not evenly distributed
-Types of Migration- oInternal Migration- same country; from farms and villages to cities Search of jobs Results in urbanization- growth of cities oInternational Migration- between countries Emigrate- leave country where born to move to another country Immigrants- emigrant from original country Example- moving from U.S.A. to Canada
-Immigration Increased greatly over past 200 years -Reasons People Move- Push Factors vs. Pull Factors Better transportation Shortage of Farmland Need for Jobs Disease Warfare- Iraqi Refugees Persecution s Rwanda Refugees Natural Disasters- Hurricane Katrina Refugees
Push factors convince people to leave their homes. Pull factors attract them to other places. Which of the reasons for moving on the previous slides are push factors, and which are pull factors? Label each push or pull-
oImpact on Regions they leave- Population Decreases Eases Overcrowding Hurts Economy- due to loss of skilled/educated workers Divides Families oImpact on New Country- New forms of art, music, food, languages Fear/Resentment Can lead to violence, unjust treatment of immigrants