Population Pyramids Flashcards
1
Q
What is an expansive pyramid?
A
Triangle/pyramid
Base – widest part
Birth rate – high
Life Expectancy – low Note the concave sides
Rate of Natural Increase – high
2
Q
What is an Stationary pyramid?
A
Half ellipse shape
Base – about the same width as middle
Birth rate – mid
Life Expectancy – high Note the convex sides
Rate of Natural Increase – low
3
Q
What is an Constrictive pyramid?
A
Base – narrower than middle
In extreme cases, upside-down pyramid
Birth rate – low
Life Expectancy – mid
Rate of Natural Increase – decrease
4
Q
What do asymmetries mean/caused by?
A
Means baby boom or something happens for difference in female and male pop like war policies or migrant workforce
