Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
|
what is the ecumene?
|
areas of human habitation
|
|
|
what is arithmetic density?
|
the total number of people divided by the total land area
|
|
|
what is physiological density?
|
the number of people supported by a unit of arable land (total number of people divided by the total amount of arable land)
|
|
|
what is agricultural density?
|
number of farmers per area of arable land
|
|
|
what is doubling time?
|
the number of years it takes to double a population
|
|
|
what is sex ratio?
|
the number of males per 100 females in the population
|
|
|
characteristics of stage 1 in the demographic transition
|
high CBR and CDR with low rate of growth
|
|
|
characteristics of stage 2 in the demographic transition
|
low CDR, high CBR, with rapid population growth
|
|
|
characteristics of stage 3 in the demographic transition
|
low fertility, CBR, and NIR
|
|
|
characteristics of stage 4 in the demographic transition
|
low CBR and CDR with nearly zero natural increase
|
|
|
characteristics of possible stage 5 in the demographic transition
|
low CBR, increasing CDR, with a negative NIR
|
|
|
what is the elderly support ratio?
|
the number of working age people divided by the number of persons 65 and older
|
|
|
stage 1 in the epidemiological transition
|
infectious and parasitic diseases and attacks by animals and other humans were causes of death at the time (high CDR)
|
|
|
stage 2 in the epidemiological transition
|
receding pandemics (rapidly declining CDR)
|
|
|
stage 3 in the epidemiological transition
|
decrease in deaths from infectious diseases and increase in chronic disorders (moderately declining CDR)
|
|
|
stage 4 in the epidemiological transition
|
major degenerative causes of death linger but life expectancy is extended through medical advances (low but increasing CDR)
|
|
|
reason for possible stage 5 in the epidemiological transition
|
infectious diseases return and new ones emerged
|
