Earth Day

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Across
  1. 4. Chlorofluorocarbons
  2. 5. Desctruction of forest and trees
  3. 7. The Earth Day promotes ___ Cities
  4. 8. The part of the earth’s atmosphere that repels the sun’s ultraviolet rays. (2 words)
  5. 10. H2O
  6. 11. Agent that spreads disease
  7. 13. What to do with leftover food
  8. 14. The most abundant energy source capable of being harnessed by humans. (2 words)
  9. 16. Sharing arrangement with vehicle
  10. 17. When we talk about the 3R's the middle R is _________
Down
  1. 1. A kind of vehicle
  2. 2. Disease from polluted water
  3. 3. The name given to gasses that trap heat and cause global warming.
  4. 4. Economic and careful use of natural resources
  5. 6. A layer of earth's atmosphere
  6. 9. The study of relationship between plants of animals and their surroundings
  7. 12. Global warming causes melting of _______
  8. 14. A Comination of smoke and fog that pollutes atmosphere
  9. 15. Use an item again