Geography:Popuation Revision Flashcards
Currently what is the worlds population
7.5 billion
Until what year was the population growing steadily and why
1800 because of the improved quality of life after the Industrial Revolution & improvements in medicines & vaccinations to prevent many deaths
What makes more people move to cities and what is it called
Economic opportunities open up in cities as countries start to develop which makes more people move to cities .It is called urbanisation.
What does a population pyramid show
It shows the population strcture in a country; how many males and females arebin each group
What does the height of the pyramid show
It tells us the life expectancy
What does the bottom of the pyramid show
It tells us how many babies are being born
The wider the bottom of the pyramid is….
…the higher the birth ratee
6 reasons for a high population
Improved medical care, migration, tradition for large families, advances, religious beliefs, improvements in infant medical care
What is an ageing population
Is a population with lots old people, aged 64+ because of a low birth rate and a hig life expectancy
Why do High Income Countries usually have an ageing population
Because of -healthy diets -advanced medical care -vaccinations against diseases
Name an example of a country with an ageing population
Japan
The population pyramid for Japan is very wide at the top what does it mean
The elderly people have a high life expectancy
Name an example of 2 countries that used a population policy to manage the size of the countries
China & Sweden
Sweden had an ageing population how did they fix it
The government had a range of benefits to encourage people to have children
What is emigration
The movement of pople out of acountry
