population pyramids

what shape is this

pyramid shape

what is the shape of the sides

concave

describe the peak

narrow

what does the narrow peak represent

low life ecpectancy

describe the base

wide base

what does the wide base represent

youthful population and high fertelity

what does the concave sides represent

high mortality

what is this shape

spinning top shape

describe the peak

wider peak

what does the wider peak represent

high life expectancy

describe the shape of the sides

convex

what do the convex sides represent

low mortality, ageing population

describe the base

narrower base

what does the narrower base represent

lower fertility

what are the ages 0-14

young dependants

what are the ages 15-59

economically active

what are the ages 60+

old dependants

death rate

deaths per thousand people per year in a geographical area

birth rate

births per thousand people per year in a geographical area

fertility rate

expected number of births per women in their lifetime in a geographical area

how to calculate population growth

birth rate - death rate

give an example of a country in stage 1

Niger

give an example of a country in stage 2

Haiti

give an example of a country in stage 3

Morocco

give an example of a country in stage 4

Australia

what are the negative effects of many young dependents

-high unemployment from lack of jobs

-strain on resources (food, water)

-strain on education and health system

what are the negative effects of many old dependents

-high taxes on a small workforce to pay for pensions, shelter and healthcare for the old dependents

-many young people employed to take care of the elderly (not enough people in other fields)