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World Population

World Population. Population Growth and Population Movement. Reasons for Population Growth. -Approximately 7 billion people on the planet Population Grown due to- - Lowering death rate- o Better health care o Better living conditions o More plentiful food supplies - Birth rates grown-

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World Population

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  1. World Population Population Growth and Population Movement

  2. Reasons for Population Growth • -Approximately 7 billion people on the planet • Population Grown due to- • - Lowering death rate- • o Better health care • o Better living conditions • o More plentiful food supplies • - Birth rates grown- • o Asia • o Africa • o Latin America

  3. Challenges in Population Growth • - More food is needed for growing population • o Advances in technology help increase food •  Improved irrigation systems •  Hardier plants • -Severe Lack of Food • o Famine- caused by warfare and crop failures • - Severe Lack of Water • - Lack of enough Housing • - More Services such as: • o Hospitals • o Schools

  4. Where People Live • - 30% of Earth’s surface is land • o Only 50% of the land on Earth is livable

  5. Population Distribution • - People are not evenly distributed around the world • o People choose to live where there are- •  Fertile soil •  Mild Climates •  Natural Resources •  Water Resources • • Rivers • • Coastlines

  6. Where People Live • - 2/3 of the population is clustered • o 5 Regions- •  East Asia •  South Asia •  Southeast Asia •  Europe •  Eastern North America • o More People Live near- •  Cities •  Jobs •  Resources

  7. Population Density • - Average # of people per sq. mile • o Total Population %/Total Land Area • - Population Density Represents • o Average # of people; not evenly distributed

  8. Population Movement • - Types of Migration- • o Internal Migration- same country; from farms and villages to cities •  Search of jobs •  Results in urbanization- growth of cities • o International 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

  9. Reasons People Move • - 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- - 1990s Rwanda Refugees •  Natural Disasters- Hurricane Katrina Refugees

  10. Push Factors Vs. Pull Factors • 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-

  11. Impact of Migration • o Impact on Regions they leave- •  Population Decreases •  Eases Overcrowding •  Hurts Economy- due to loss of skilled/educated workers •  Divides Families • o Impact on New Country- •  New forms of art, music, food, languages •  Fear/Resentment • • Can lead to violence, unjust treatment of immigrants

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