Across
- 2. the act of maintaining something like resources
- 4. the presence harmful elements in the environment
- 7. converting waste into usable materials
- 11. the overall increase in temperature of the earth’s atmosphere often caused by greenhouse gas effect and chemicals such as carbon dioxide and chlorofluorocarbons
- 13. the production and discharge of something, e.g., smoke
- 14. the act of putting pollutants or garbage into ocean waters
- 15. a substance which has been artificially developed or prepared
Down
- 1. place where waste is deposited to be stored
- 3. preventing, protection or avoiding wasteful use of resources like water
- 5. pollutants which cause the greenhouse gas effect and capture radiation in the earth’s atmosphere
- 6. the act of clearing a wide area of trees
- 8. the natural world including the air, land and water
- 9. rainfall made acidic often by fossil fuel pollution that pollutes water and land
- 10. a pollutant causing global warming or climate change
- 12. fog or haze or smoke combined with other pollutants
