Gcse- Population Flashcards
What is distribution?
Describes way in which people are spread across earths surface
Describe density-
Number of people living in a given area.
How do you find population density?
Population density is found by dividing total population of place by the places area.
Characteristics of population growth-
Depends on balance between birth rate and death rate.
Birth rate is average birth a year per thousand people.
Whay is natural increase?
When birth rate is higher than the death rate
What is natural decrease?
When death rate is higher than the birth rate
Why are there large families in MEDCs and what are the effects?
Children help work on land
High infant mortality rates
Religious beliefs forbid birth control
Lack of education means poor family planning
Lack of access to contraception
Large families can enhance reputation of area.
Effect of too few U15s in area-
Means replacement rate is being met.
Countries with poor replacement rate face decline in countries population.
Fear in future is that countries like this will have no skilled workers, and there will be closures of shops and schools.
Why do countries life expectancy increase?
Improved standards of living.
Improvements in health care
Development of drugs and vaccines
Better diet
What are the problems with an ageing population?
Mere demand for pensions, medical care and residential homes.
People providing services are paid by smaller proportion of working people.
Increase in long term illness.
Problems facing the elderly-
Have to live alone when partner dies.
Many can’t afford residential homes.
Lengthy waits for operations.
Those living in urban areas face scares from traffic and crime.
What is migration?
Movement and change of home.
Can be temporary, seasonal or daily.
What are emigrants?
People who leave a country
What are immigrants?
Those who arrive in a country
What is migration balance?
Difference between number of emigrants and imigrants
What is net migration loss?
Countries which loose more people to emigration than immigration.
Why may people opt for voluntary migration?
Employment Trade and economic expansion Territorial expansion To be nearer friends Better climate
Why may people be forced to migrate?
Religion War Racial discrimination Lack of food Overpopulation
Who are refugees?
People who are forced to leave a country
Who are asylum seekers
People who leave their home country, and have applied to another country for recognition as a refuge.
Who are illegal immigrants?
People who enter a country without personal documents. They also fail to meet legal requirements of country and become part of hidden economy.
Who are economic migrants?
People who make a decision to leave their home country knowing they can return.
Why may people move from rural areas to urban?
Employment
Family status
Environment status
Social factors
