What is a natural increase in population?
If more people are born than die in a year
What is a natural decrease in population?
If there are more deaths than births in a year
What is the model that helps demographers understand population?
The demographic transition model
What is a country in stage one of the demographic transition model?
Tribes
What is a country in stage two of the demographic transition model?
Mali
What is a country in stage three of the demographic transition model?
Brazil
What is a country in stage four of the demographic transition model?
Ireland
What is a country in stage five of the demographic transition model?
Germany
What are the factors that influence the rate of population change?
- Food supply
- War
- Technological development
- Health
- Education
- The place of women in society
What is the pessimistic view?
The population that will rise at an explosive rate
What is the optimistic view?
The view that birth rates will drop due to education and the population will level out
What is population distribution?
The way people are spread across a given area
What is population density?
The number of people living in a square kilometer
What is life expectancy?
The average number of years a person is expected to live
Problems with high population density?
- Overcrowding
- Shortage of clean water
- Pollution
- Lack of open space
- Low marriage rates
- Abandonment of agricultural land
What are two places with a high population density?
- Calcutta in India
- Hong Kong in China
What are the problems associated with low population densities?
- Low marriage rates
- Abandonment of agricultural land
- Political and economic isolation
What are two places with low population densities?
- The west of Ireland
- Mali
What is internal migration?
When people migrate within the same country or region
What is international migration?
When people migrate from one country to another
What is organised migration?
The movement of people planned by a government
What is an example of organised migration?
- Laois Offaly plantation
- Munster plantation
- Ulster plantation
