straight or near vertical sides reveal a low death rate
concave slopes = high death rates
bulges in slope=high rates of immigration
, deficits in slope=emigration, war, epidemic
Demographic transition model (DTM) - correct answer ✔✔shows the change in population structure
from LEDCs to MEDC
Stage 1: High and variable - correct answer ✔✔birth rates and death rates are high and variable
population growth fluctuates
no countries, only some indigenous tribes are at this stage
Stage 2: Early expanding - correct answer ✔✔birth rate remains high but the death rate comes down
rapidly
population growth is rapid
Afghanistan, Sudan, & Libya
Stage 3: late expanding - correct answer ✔✔birth rate drops and death rate is low
population growth continues but at a smaller rate
Brazil & Argentina
Stage 4: Low and variable - correct answer ✔✔birth and death rates low and variable
population growth fluctuates
Stage 5: low declining - correct answer ✔✔birth rate is lower than death rate
population declines
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