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Defend Earth from alien invaders
Human population has experienced what type of growth over past 200 years?
Today, human population of how many?
Today, human population increases by how much per week?
9.3 billion or more
By 2050, human population of how many?
ability to spread into all areas of earth, improved agricultural techniques, improved public health
Why such rapid population growth recently?
Will human population stabilize anytime soon?
exponential growth to logistic curve
Human population is moving from what type of growth to what type of growth?
optimum sustainable population, number of people living comfortably while preparing for future generations
cultural carrying capacity
number of live births per 1000 people per year
number of deaths per 1000 people per year
(birth + immigration) - (deaths + emigration)
Population change = (equation)
China, India, US, Indonesia, Brazil, Pakistan, Nigeria, Bangladesh, Russia, Japan
Top 10 Populated Countries
the average number of children woman has in her lifetime
replacement-level fertility rate
average number of children couple needs to have to replace themselves
replacement-level fertility rate for developed countries
replacement-level fertility rate for developing countries
total fertility rate (TFR)
average number of children born to a woman during reproductive years
TFR is ______ worldwide.
current US population
this country has the highest population growth than any other developed countries (due to immigration)
The fact that the US has a higher population growth than any other developed country could have a large environmental impact due to _____________.
Most developed countries expect to have declining populations by what year?
child labor, cost of raising children, availability of pension, urbanization, opportunities for women, infant mortality rate, average marriage age, availability of birth control/abortions, religious/cultural beliefs and traditions
Factors Affecting Birth and Fertility Rates
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