1.3 population structure

Question 1

What is population structure

Answer 1

The composition of a population, the most important elements of which are age and sex

Question 2

Population pyramid

Answer 2

A bar chart arranged vertically, that shows the distribution of a population by age and sex

Question 3

Dependency ratio

Answer 3

The ratio of the number of people under 15 and over 64 years to those 15-64 years of age

Question 4

How is the structure of a population influenced

Answer 4

Mortality
Migration
Fertility

Question 5

What does a large amount of young people on the population pyramid tell us

Answer 5

These young people have to be housed, fed, educated and looked after- this all cost governmental money.

Question 6

Tip for describing a population pyramid

Answer 6

When describing and explaining population pyramids a good starting point is to divide the pyramid into three sections: the young dependant
the elderly dependent
and the economically active

Question 7

Dependency ratio formula

Answer 7

population 0-14 + population aged 65 and over
——————————————————-
population aged 15-64

Question 8

CASE STUDY: A COUNTRY WITH A HIGH DEPENDENT POPULATION. GAMBIA

Answer 8

95% of population are Muslim. 
Until recently religious leader were against the use of contraception. 
due to culture women had little say on family size. 
Children are seen as asset to help farm
dependency ratio is 92 
unemployment is high 
parents struggle to provide housing
desertification