Busy. Please wait.
or

Forgot Password?

Don't have an account?  Sign up 
or

taken
show password

why

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.


Already a StudyStack user? Log In

Reset Password
Enter the email address associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know (0)
Know (0)
remaining cards (0)
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Population terms

Key terms

TermDefinition
Birth rate per thousand The average number of births per 1000 people in the population per year
Death rate per thousand The average number of deaths per 1000 people in the population per year
Life expectancy The average nuber of years a person is expected to live
Population density The average number of people per square kilometre
Emigrate When someone leaves a country
Natural increase The birth rate minus the death rate
Population pyramid A graph showing how the population is composed of different genders and age groups
Refugees People who are forced to migrate
Zero population growth When the birth rate is equal to the death rate
Distribution How people are spread out
Population density The nuber of people in an area
Demographic transition model A graph used to show population changes
Infant mortality The number of children out of every 1000 born alive who die before the age of one
Population structure The number of males and femeles within different age groups in a population
Dependency ratio % of people who are working (economically active) / % people whow are dependent (young and old)
Created by: lychee