What is the definition of population?
Total number of inhabitants in a specified area
Total number of inhabitants in the whole world
The birth rate tells us how many babies are born each year and it is written as a fraction out of 100.
Population pyramids are also know as . they show and these diagrams divide people into and gives the percentage of . The shape of the pyramid also tells you about and other pieces of information
What causes an ageing population?
more babies born and more people living longer
fewer babies born and people living longer
People are living longer because of improved medical services and higher living standards/ cleaner water and supplies
women are having more babies due to social pressures increased job opportunites and improved planning family services
what is the dependency ratio?
the relationship between the group of dependent people
the group of people who live in council support
What is the dependency ratio
number of 16-65 over the number of under 16s plus the number of over 65s
number of under 16s plus the number of over 65s over the number of 16s-65s times 100
migration can be daily, seasonal or permanent. it is a movement of people from a source area to a receiving area.
what is an emigrant
person who moves out of their country
person who is forced to leave their country
the rate of people moving in and out of a country
people that move out of a country
