Population Flashcards
What is population distribution?
How people are spread out over an area
What is population density?
The number of people who live within a certain area.
Describe the global distribution of population density.
The pattern of global population distribution is uneven.
Name two physical factors affecting population.
Relief, climate, fertility.
Name two human factors affecting population
Amenities, jobs.
What is natural increase?
The difference between birth and death.
When does a natural increase occur?
When birth rates are higher than death rates.
What is a population explosion?
A sudden rapid rise in the number of people.
How to calculate population change?
New population - Original population = change, (Change ÷ original population) X 100 = % change/increase
Where is population increasing rapidly?
Developing countries.
What is the definition of overpopulation?
Too many people for a particular country or area.
What are the three main consequences of overpopulation?
1) Social
2) Economic
3) Environmental.
Give an example of a social consequence.
Lack of water, not enough food available, not enough homes leading to illegal homes being built, not enough medical care for people, diseases will spread.
Give an example of an economic consequence.
Not enough jobs, gas and oil will run out.
Give an example of an environmental consequence.
Rates of pollution will increase: air pollution and waste, destruction of forests and habitats.
What causes population growth?
Natural increase.
What does the demographic transition mode show?
The demographic transition model shows population change over time.
At which stage are birth and death rates equally high?
Stage 1
At what stage are birth rates high and death rates decreasing
Stage 2
What is a population pyramid?
Population pyramids show us how many people there are in each age group and sex in a population.
At what stage are birth rates and death rates rapidly decreasing?
Stage 3
At what stage are birth rates and death rates low but the population is starting to decline?
Stage 5
Name three challenges does an ageing population present.
An ageing population means that fewer people will be of working age, More people will require pension payments and healthcare, Elderly people are more likely to live alone and may become lonely if isolated.
What has happened to Japan’s population since 2010?
Declining in number and becoming overall older.
Name measures that countries can use to combat an ageing population.
Make it easier to have more children, encourage more of the population to enter the workforce, increase productivity through technology, improve education of children to allow more to enter workforce, raising the pension age and access to pension, promoting good health in old age.
