Population change

Question 1

Describe an Expansive population pyramid

Answer 1

Wide base, narrow top

More Young population
Growing population
Low life expectancy
High death rate
High birth rate
High dependency ratio

Question 2

Constrictive population pyramid

Answer 2

Wide top, narrow base

More Elderly population
Shrinking population
High life expectancy
Low birth rate
High dependency ratio

Question 3

Stationary population pyramid

Answer 3

Rectangular shape

Not growing
High quality of life
Stable dependency ratio

Question 4

Demographic Transition model - Stage 1

Answer 4

Total population is low but it is balanced due to high birth rates and high death rates.

Question 5

Demographic Transition model - Stage 2

Answer 5

Total population rises as death rates fall due to improvements in health care and sanitation. Birth rates remain high.

Question 6

Demographic Transition model - Stage 3

Answer 6

Total population is still rising rapidly.
The gap between birth and death rates narrows due to the availability of contraception and fewer children being needed to work - due to the mechanization of farming. The natural increase is high.

Question 7

Demographic Transition model - Stage 4

Answer 7

Total population is high, but it is balanced by a low birth rate and a low death rate. Birth control is widely available and there is a desire for smaller families.

Question 8

Demographic Transition model - Stage 5

Answer 8

Total population is high but going into decline due to an ageing population. There is a continued desire for smaller families, with people opting to have children later in life.