north and south america
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why do people migrate
There is two causes that push people to migrate they own country. 1. Push forces. example: - civil war - environmental degradation - unemployment or underemployment - religious or ethnic persecution 2. Pull forces - better economic opportunity - better heath services - religious freedom - political freedom. The total fertility rate is the average number of children born per women. For a population to remain the same, the TFR must be 2.1. If it is higher than 2.1 the population rises If it is lower than 2.1 the population falls World TFR is 2.42
The demographic transition
Today in class we look at the demographic transition model that will help us to study for the quiz on Monday.
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