Earth Day

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