Human population Flashcards
why was there rapid growth after 1750?
medicine improved. vaccines to diseases
improved farming methods
lower mortality, higher life expectancy, higher population growth
what does gender distribution refer to?
ratio of males to females
Explain rapid growth and country
wide base- high natality meaning low contraceptives and lack education
narrow top- high mortality- poor medical care and poor nutrition
lower standard of living, developing country
explain stable growth and country?
base same width as reproductive section
declining natality meaning better family planning, finance and education
lower mortality and higher life expectancy meaning good medical care and nutrition
more developed country
explain negative growth and country?
low natality (education, family planning, finance)
stable mortality and high life expectancy
declining population
developed country
define dependency ratio
ratio of those working and contributing to GDP and those not working in country
factors that effect dependency ratio
age
economy- availability of jobs
stability of government- political unrest
availability of resources