Life Expectency

Today in class we learned about life expectancy and growth of the population. We learned about the difference in the number of years between hitting another billion people on the Earth. We hit one billion people around 1804 and had another 123 years until we hit two billion. after that it started to go down in years until it seems to settle at another billion each 12 years. We also talked about life expectancy. Life expectancy is the average number of years lived by a group of people born in the same year. We also talked about whether we think the older generation will live longer then we will. We took in effect eating habits, smoking, and other health problems. 

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