Population Pyramids And The DTM Flashcards Preview

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Flashcards in Population Pyramids And The DTM Deck (5):
1

What features would the population pyramid for stage 1 have?

High birth rate
High infant mortality rate (quickly sloping sides)
Death rate high and life expectancy low (shortest pyramid)

2

What features would the population pyramid for stage 2 have?

Death rates begin to fall (sides slightly less concave)
Life expectancy begins to rise

3

What features would the population pyramid for stage 3 have?

Narrowing base shoes the decrease in birth rates typical of stage three countries

Birth rate decreases quickly

More people living longer

4

What features would the population pyramid for stage 4 have?

Straight sided showing steady birth rate
High life expectancy allows most people to live into their 70's

5

What features would the population pyramid for stage 5 have?

Not sustainable

Low birth rate

Increasing elderly population (will be few working adults to support them)

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