Population and Settlement

Right now on this Earth there is about seven billion people. The number of people is increasing by seventy-seven million per year. Ninety percent of the population growth takes place in devolving (have problems and trying to improve) countries of Africa, South & East Asia and Latin America. It took a very long time for the world to reach seven billion people. Now, that the people on the Earth are increasing rapidly, by the time we all get older there might be about ten billion people on this Earth. The life expectancy of someone is the average number of years to be lived by a group of people born in the same year. In the U.S, the average age is about 79 years old. Women usually live long than men do. The reason for that is because men work dangerous job. They also have the higher risk for hypertension and heart disease.

Ever wonder why people migrate? Well the push forces are: Civil war, Environmental degradation, Unemployment and religious or ethnic persecution. The pull forces are: Better economy, better heath, religious freedom, political freedom. The pull forces are definitely some choices that will help with a serious decision between a family or even an individual.




Vocabulary: 

-Crude Birth Rate: # of births per 1,000 of the population.
-Crude Death Rate: # of deaths per 1,000 of the population.
             -Rate of natural disease: produced by subtracting the death rate from the birth rate, the divide by 10 (Death-Birth)/10 
-Net Migration Rate: difference between the number of people coming and leaving a country during a year. ( People entering the country.)
           (People leaving the country= Net immigration)
-Total Fertility Rate (TFR): average number of children born per women.
          - for the population to remain same the TFR has to be 2.1
          - Higher than 2.1: population rises
          - Lower than 2.1: populations falls
    - The U.S TFR= 2.06