Demograhpic

Question 1

Describe 3 stages of demographic transition

Answer 1

Stage 1 : decline in mortality
- reduction in mortality in all ages
- particularly infant mortality
- more infants survive to childhood
- average age of population drops

Stage 2: decline in fertility
- related to decline in infant mortality
- parents more confident that children will survive to adjusthood
- fertility rates decline
- population continues to grow but at a reduced rate
- proportion of elderly people begin to increase
- enhanced by reduced old age mortality

Stage 3 : mortality and fertility in balance
- mortality and fertility fall into balance agai
- but at lower levels than before
-natural rate of population growth is zero
- retired population increases while
-working population decreases