DEFORESTATION

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Across
  1. 2. important
  2. 7. cause to happen
  3. 8. ............... gases
  4. 10. types of plants that are one of the kind
  5. 11. become less and less until it disappears
  6. 13. increase in the Earth's temperatures caused by high levels of CO2
  7. 14. to happen
  8. 15. relating to the buying and selling of sth
  9. 16. people who cut down trees
  10. 18. all the plants living in an area and affecting each other
Down
  1. 1. cancer-fighting........
  2. 3. take in
  3. 4. emit
  4. 5. causing little or no damage to the environment
  5. 6. people who buy land to build houses, malls, parking lot etc.
  6. 9. home to
  7. 11. fragile
  8. 12. danger
  9. 17. to eat the grass and plants