The way in which people are spread out across the world. This distribution is uneven and changes over time.
1 of 26
What is population density?
The average number of people per square kilometre. It shows whether an area is sparsely or densely populated.
2 of 26
Define birth rate
The number of live births per thousand of population per year.
3 of 26
Define death rate
the ratio of deaths to the population of a particular area or during a particular period of time, usually calculated as the number of deaths per one thousand people per year.
4 of 26
Define life expectancy
Life expectancy is a of the average time someone is expected to live, based on the year of their birth, their current age and other demographic factors including sex.
5 of 26
Define dependency ratio
It is a measure showing the number of dependants, aged zero to 14 and over the age of 65, to the total population, aged 15 to 64.
6 of 26
What is infant mortality?
The death of children under the age of one year.
7 of 26
What is natural increase?
The difference between the birth rate and the death rate of a country or place is called the natural increase.
8 of 26
How do you work out natural increase?
The natural increase is calculated by subtracting the death rate from the birth rate.
9 of 26
What is the demographic transition model?
The Demographic Transition Model shows population change.
10 of 26
What causes an ageing population?
Occurs when the median age of a country or region increases due to rising life expectancy and/or declining fertility rates.
11 of 26
What is a population pyramid?
Is a graphical illustration that shows the distribution of various age groups in a population.
12 of 26
What is migration?
Migration is the movement of people from one permanent home to another.
13 of 26
What is an immigrant?
Someone who moves into another country
14 of 26
Why do people leave a country?
Push factors
15 of 26
What are three push factors?
War, natural disasters and farmine
16 of 26
Why do people go to a country?
Pull factors
17 of 26
What are three pull factors?
Better health care, Job opportunities and safety
18 of 26
What is over population?
It is where the number of existing human population exceeds the carrying capacity an area.
19 of 26
Causes of over population
Reduced mortality rate, better medical facilities, reduction of precious resources
20 of 26
What are the effects of overpopulation?
Pressure is put on resources such as water, food and not enough housing facilities
21 of 26
Reasons for high birth rates
Lack of family planning or need for a large family to work in a rural area
22 of 26
An example of a country that controls it population
China
23 of 26
How does China control its population?
Setting couples a one child limit
24 of 26
What is urbanisation?
Urbanisation is the increase in the proportion of people living in towns and cities.
25 of 26
Causes of urbanisation
A country becoming more industrialised therefore creating jobs.
26 of 26
Other cards in this set
Card 2
Front
What is population density?
Back
The average number of people per square kilometre. It shows whether an area is sparsely or densely populated.
Comments
No comments have yet been made