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Section 5-3 Human Population Growth

AB
The scientific study of human populations is called ___.demography
____ is a change from high birth rates and high death rates to low birth rates and low death rates.Demographic transition
The second stage of demographic transition is characterized by ___.low death rate and high birth rate.
The demographic transition begins (stage 2) when a country's ______ -rate _____.death-rate, decreases (usually because they are starting to modernize and get better access to medicine and food)
Which event in human history marked the beginning of really rapid growth rates in the world?The industrial revolution
By 2050, the human population is expected to hit ____.9 billion
Which two factors help predict whether a country will have high population growth rates or not?Social and economic factors
Exponential growth rates are typical of countries that have not yet ___.modernized
What are three improvements that helped contribute to the start of exponential growth rate of the human population about 500 years ago?1) Improved food supply 2) Better sanitation 3) Improved health care
Which of these two age structure diagrams shows the typical human age structure of a typical third-world country?, A,
Which of these two age structure diagrams shows the typical human age structure of a first-world modernized country?, B,
The age structure diagram on the left shows a ____ birth rate and a ____ death rate., high birthrate and high death rate.,
The age structure diagram on the right shows a ____ birth rate and a ____ death rate., low birthrate and low death rate.,
Stage 1 of the demographic transition (the stage before the "transition" actually starts) is characterized by ___________.high birthrates and death rates
Stage 3 (the final stage) of the demographic transition is characterized by ____.low birthrates and death rates
Until relatively recently, half of all children born did not survive to adulthood. What did humans do because of this?They had large families (The birthrate was very high for most of human history because the death rate was also high. Parents needed to have a lot of kids so that they could help on the farm and that at least some would survive to take care of the parents when they got old)


Truman High School

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