pop and environment chat gpt Flashcards
What is carrying capacity?
The maximum population size an environment can sustainably support without environmental degradation.
Define overpopulation.
When the population exceeds the carrying capacity of an area.
Define underpopulation.
When there are too few people to make full use of resources.
Define optimum population.
The population size producing the highest possible standard of living for a given environment.
What is population density?
The number of people per square kilometre.
What is population distribution?
The pattern of where people live within a given area.
Name three physical factors affecting population distribution.
Climate, relief, water availability.
Name three human factors affecting population distribution.
Infrastructure, economic opportunities, political stability.
What is a population pyramid?
A graph showing the age and gender structure of a population.
What is dependency ratio?
The ratio of dependents (under 15 and over 65) to the working-age population.
What is natural population change?
The difference between birth and death rates.
What is birth rate?
Number of live births per 1,000 people per year.
What is death rate?
Number of deaths per 1,000 people per year.
What is fertility rate?
Average number of children a woman will have during her lifetime.
Define infant mortality rate.
Number of infant deaths per 1,000 live births before age 1.
What is life expectancy?
Average number of years a person is expected to live.
What factors influence birth rates?
Economic development, contraception, cultural norms, education of women.
What factors influence death rates?
Healthcare access, nutrition, sanitation, conflict, diseases.
What is migration?
The movement of people from one place to another.
What are push and pull factors?
Push: factors driving people away (e.g. war). Pull: factors attracting people (e.g. jobs).
What is the Malthusian Theory?
Population grows faster than food supply, leading to famine and disease.
What is the Boserup Hypothesis?
Population growth encourages technological innovation in food production.
What is the demographic transition model (DTM)?
A model showing how birth and death rates change as a country develops.
How many stages are in the DTM?
Five.