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GHS-Chapter 9

Professionals who study and make predictions about human populations are called demographers
Amount of time it took the population of the Earth to double from 2 million to 4 billion 44 years
Factors that contributed most to the exponential growth of the human population more food, better hygiene
The distribution of ages in a population at a specific time a population pyramid
The result of educating women to learn family-planning technique lowered birthrates
Human population growth was most rapid during which period of human history Modern Age
A cholera outbreak can be caused this lack of clean water
Because birth rates have begun to fall this will occur to the Earth’s population stabilize somewhere around 9 billion by 2050.
region experiencing the biggest increase in population Asia
Factors which make it difficult to reduce population growth low literacy and limited healthcare
a strategy that could increase population growth limiting education for women
adequate sewage treatment facilities for growing populations results in this decrease in waterborne diseases
When birth rates and death rates are both high this occurs to the population the population grows slowly, if at all
The Industrial revolutions effect on the population increased the human population from 1880-1930
combination of high birth rates and low death rates increased the human population from 1880-1930
improvements in societal infrastructure and services increased the human population from 1880-1930
the third stage of demographic transition characteristic social conditions that favor smaller families
reason that wood is considered a limited resource in many developing countries People cut down trees faster than they can grow.
the rend of the death rate during Stage 2 of a population’s demographic transition decreases
Age structure of Countries with high growth rates more younger people than older people.
A disease that is often spread through unsafe public water sources dysentery
Characteristics that predict population sizes age structure, survivorship, fertility rate, and migration
increased immigration movement of people into an area that can cause a population to increase
the characteristics of the model of demographic transition life expectancy, education of women, industrialization
Less-developed countries suffer more from rapid population growth because they are less likely to have this piece in place that helps to support the population infrastructure
The point when world population growth will eventually stop countries have replacement-level fertility rates
can result from increased birth rate, increased life expectancy or immigration increase in population
the average number of children each parent must have in order to replace themselves in the population replacement level
the birth rate drops and the size of the population begins to decrease during this transitional stage
fourth stage of demographic transition
two revolutions that brought about changes that caused exponential growth of the world human population industrial and scientific
A shortage of this can decrease the food supply available to a growing population arable land
The study of human population patterns is called demography
What countries are to be given priority for foreign aid least-developed
One way to stabilize the world population is to reduce these by improving women’s status and educational opportunities fertility rates
Most demographers predict a medium population growth rate and a world population reaching this in 2050 9 billion
This helps demographers predict which age groups will experience the most growth population pyramid
Type I and Type III survivorship curves indicate populations that are growing in this manner slowly or not at all
An adequate supply of fuelwood helps to prevent this by allowing water to be boiled to sterilized disease
China has implemented a campaign to reduce birth rates that includes this reward for single-child families economic rewards
The theory of demographic transition is based on the idea that industrial development causes this type of progress that affects population growth rates economic and social
Local water supplies may be contaminated when they are also used for this type of disposal sewage
Continental population that is expected to shrink by the year 2050 Europe
Some less-developed countries have tried to move forward in demographic transition by directly reducing these through advertising and economic incentives birth rates
The world population will stop growing when fertility rates decline to this replacement levels
During the last 200 years, the human population has undergone this type of growth exponential
The percentage of members of a group that are likely to survive to any given age survivorship
A population with high fertility will have an age structure with a higher percentage of this age group young people
Countries experiencing the greatest population growth are most likely to be those going through this industrial revolution
Wealthy, developed countries such as Japan and Germany are in the fourth stage of demographic transition, when the population size begins to decline. This state is also known as this post-industrial
pre-industrial condition-birth rate and death rate are both at high levels and the population is stable stage one of demographic transition
population explosion occurs. Death rates decline as hygiene, nutrition and education improve. Birthrates are still high and population growth is still fast second stage of demographic transition
population growth slows because the birth rate decreases-even though the population is much larger it has stabilized third stage of demographic transition
The birth rate drops below replacement levels and the population begins to decrease. fourth state of demographic transition
type of survivorship curve where people live to be very old Type I
type of survivorship where populations have a similar death rate at all ages Type II
type of survivorship where populations is a pattern in very poor human populations in which many children die Type III
Created by: rseneta