Busy. Please wait.

Forgot Password?

Don't have an account?  Sign up 

show password


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)
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:
restart all cards

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

Social study vocab 2

Biosphere Regions of Earth occupied by living organisms, made up of all the ecozones
Stewardship Careful management of resources to ensure that they are sustainable
Permafrost subsoil that remains frozen all year long
Carrying Capacity the largest population that an environment can support
Deforestation the process of destroying a forest and replacing it with something else
Global Warming the observed and projected increase in the earth’s average temperature due to burning of fossil fuels and deforestation
Ecology the science concerned with the relationship between living things and the environment.
Acid Precipitation any form of precipitation that is high in sulfuric and nitric acids as a result of pollution in air.
Sustainable Development
Earth Summit
Agenda 21
CO2 emissions
Created by: Ciel Phantomhive