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Across
  1. 1. reforestation activities?
  2. 4. energy sources from the sun?
  3. 5. harmaful gases from vehicles?
  4. 7. wastewater from waste?
  5. 9. earth's protective layer?
  6. 10. water falling from?
  7. 11. what is habitat for living things?
  8. 12. what is polluted air called
  9. 14. animals losing their homes?
Down
  1. 2. saving natural resources?
  2. 3. disasters caused by excessive waste?
  3. 6. illegal logging?
  4. 8. landfills?
  5. 13. biodegradanle waste?