september22, 2014

Today in class we learned that when you measure the population you use the crude biving the rth rate and death rate. the crude birth rate is the number of births per 1000 of the population. the crude death rate is the number of deaths per 1000 of population. we learned that the rate of natural increase produced by subtracting death rate from the birth rate. the rate of natural birth also gives us the annual natural growth rate for a country or region. the net migration rate is the difference between the number of persons entering & leaving a country during a year. excess of persons entering the country is net immigration . excess of persons leaving the country is net emigration.