Population change Flashcards
Why are some areas more populated than others?
> Soil- Fertile soil is important from growing crops
Climate- a comfortable climate to live in, and suitable for agriculture
Proximity to coast and rivers
history of settlement
What determines a populations size?
Birth rate
Death rate
Immigration
Emigration
How is birth rate measured?
Number of births per 1000 of the population per year
How is death rate measured?
Number of deaths per 1000 of the population per year
What could cause a high birth rate?
Lack of access to contraception
Need for children in farming
Religious / Cultural beliefs
Youthful marriage
What could cause a low birth rate?
Position of women
Need for dual incomes
Children are expensive
Later marriage age
What could cause a high death rate?
Poor sanitation
Lack of access to health care (especially vaccinations)
Poor access to food and clean water
What could cause a low death rate?
Good sanitation
High quality health care
Easy access to food and clean water.
What does the Demographic Transition model show?
How the stages change as a country advances.
Whats the weakness of The Demographic Transition Model?
It doesn’t account for some countries that are underdeveloped.
On a Population Pyramid, what does a wide base represent?
High Birth rate
On a Population Pyramid, what does a large step in at the base represent?
High infant mortality
On a Population Pyramid, what does a rapidly narrowing pyramid represent?
High death rate
On a Population Pyramid, what does a narrow top represent?
Low life expectancy/ Youthful population
