Ecological Issues

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Across
  1. 2. ecological distinct with endemic species
  2. 4. use of materials
  3. 6. Act of harm against forests.
  4. 8. contamination of nature
  5. 9. harmful rain causing by CO2,SO2,CO
  6. 11. catching too many fish at once
Down
  1. 1. rotting of a material
  2. 3. different kinds of life in an area
  3. 5. plastic pieces smaller than 5 mm's
  4. 7. any deviation from the natural temperature in a habitat
  5. 10. burning of waste