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;
7 Cards in this Set
- Front
- Back
|
Demography |
Scientific study of population characteristics |
|
|
Ecumene |
The portion of earth's surface occupied by permanent human settlement |
|
|
Life expectancy |
At birth the average number of years a newborn infant can expect to live at current meet Alita levels |
|
|
Demographic transition |
Diffuses to individual countries at different rates and produces local variations in natural increase, fertility, mutality |
|
|
Population pyamid |
A country's population can be displayed by age and gender in a bar graph |
|
|
Dependency ratio |
Number of people who are too young or to old to work coma red to the number of people in their productive years |
|
|
Sex ratio |
Number of mates per hundred females in the population |
