<Li> In stage one , pre-industrial society , death rates and birth rates are high and roughly in balance . All human populations are believed to have had this balance until the late 18th century , when this balance ended in Western Europe . In fact , growth rates were less than 0.05 % at least since the Agricultural Revolution over 10,000 years ago . Population growth is typically very slow in this stage , because the society is constrained by the available food supply ; therefore , unless the society develops new technologies to increase food production ( e.g. discovers new sources of food or achieves higher crop yields ) , any fluctuations in birth rates are soon matched by death rates . </Li>
<Li> In stage one , pre-industrial society , death rates and birth rates are high and roughly in balance . All human populations are believed to have had this balance until the late 18th century , when this balance ended in Western Europe . In fact , growth rates were less than 0.05 % at least since the Agricultural Revolution over 10,000 years ago . Population growth is typically very slow in this stage , because the society is constrained by the available food supply ; therefore , unless the society develops new technologies to increase food production ( e.g. discovers new sources of food or achieves higher crop yields ) , any fluctuations in birth rates are soon matched by death rates . </Li>
which phase of demographic transition is characterized by high birth and death rates
which phase of demographic transition is characterized by high birth and death rates
stage one
stage one