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

Environmental Chall…

Terms to Know about environmental challenges

Megalopolises Areas where cities have grown so large they run into each other.
Developing countries Countries seeking to industrialize, but still wanting to follow traditional ways.
Developed Countries like the United States, have long been industrialized and can offer slandered of living.
Stancerd of living The measure of a persons' wealth and personal well-being
Deforestation One of e by-products of growing world population
Habitats The special environments required for particular organisms to live.
Desertification The turning of fertile land into desert.
Drought Long periods without rain.
Subsistence farmers Growing just enough food to meet their needs
Slums The rundown, Poverty stricken portions of a city.
Nonrenewable resources Coal, petroleum, natural gas.when ran out these resources will be gone forever.
Acid rain The surfer gases produced by factories mixes with moisture in the air
Greenhouse effect The gases trap solar energy in the form of heat.
Chlorofluorocarbons (CFCs) The gases used in aerosols, air conditioning, refrigerators, and foam packaging
Ozone layer A thin protective layer of gas in the upper atmosphere.
Ozone hole This starts appear each August and reaches its largest size in October.
Sustainable Development Economic development that doesn't limit the ability of future generations to meet their needs.
Green revolution Provided new strains of rice, corn, and other grains that have high yields.
Created by: Jsutt