1. Ecology
   Ecology, or ecological science, is the study of the distribution and abundance of living organisms and how these properties are affected by interactions between the organisms and their environment
   http: //academickids.com/encyclopedia/index.php/Eco...
   
   
2. Ecology
   Ecology is the study of environmental systems, or as it is sometimes called, the economy of nature. "Environmental" usually means relating to the natural, versus human-made world
   http: //eoearth.org/article/ecology
   
   
3. Ecology Facts
   Here are some interesting facts on ecology
   http: //planetpals.com/fastfacts.html
   
   
4. Learn About Ecology
   This site is designed to help you discover ecology
   http: //nceas.ucsb.edu/nceas-web/kids/
   
   
5. United States Environmental Protection Agency: Ozone Depletion Home Page
   Information about ozone depletion home page, US regulations about CFCs and substitutes, ozone science, international policy, and the UV Index
   http: //epa.gov/ozone/