Saturday, October 3, 2015
Population and Settlement
Today in class we discussed population and settlement. There is over 7 billion people on the planet right now, and its increasing by over 73 million people per year. 90% of this population growth takes place in developing countries of Africa, South and East Asia, and Latin America. We then talked about Life Expectancy, which is the average number of years to be lived by a group of people born in the same year. A Crude birth rate is the number of births per 1,00 of the population. And the Crude death rate is the number of deaths by 1,000 of the population. Then by subtracting the death rate from the birth rate you get the Rate of Natural Increase. Then with that you get the Annual Natural Growth Rate for a country or region. Then we talked about Migration. The Net Migration Rate is the difference between the number of persons entering the country during the year. If someone is entering the country it is called immigration, if they are leaving its called emigration.
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