Population Pyramid

Question 1

What is a population pryamid?

Answer 1

• A population pyramid represents the breakdown of the population by gender and age at a given - point in population structure

Question 2

What does the key features of a population pyramid mean

Answer 2

• wide base that mean it has a high birth rate and younger population
• short bars at the topthat means they expect the birth rate to slow down
• wide bars at top indicate ageing population/ living into old age
• if the pyramid if not very tall indicates that average life expectancy is short
• narrow base indicates low birth rate

Question 3

What is a concave pryamid ?

Answer 3

• wide base = high birth rate
• short bars at the top = high death rate