more population

today in class we talked more about population. We talked about birth death rates and life expectancy. we talked about how chad has the least life expectancy with about 49.81 total and Mercado with 89.52 total the reason for the life expectancy to be so high or so low is because of living conditions chad does not have good health care safety while Mercado has good health care safety food and water. We also talked about why birth and death rates are higher or lower in some places like japan has a high death rate but a low birth rate people are dying faster than people are born.