Civil protection

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Across
  1. 2. The coltivation of waste land or land formerly under water.
  2. 4. Group of naturally occuring fibrous minerals that are resistant to heat and corrosion. It causes cancer.
  3. 5. Event with Magma escape.
  4. 7. Person obsessed with fire.
  5. 8. Gas produced by respiration and organic compounds. Used by plantes in photosynthesis.
  6. 12. The removal of contaminants from something.
  7. 13. A prolunged period of abnormally low rainfall, leading to a shortage of water.
  8. 17. Air movement.
  9. 18. Who causes fire.
  10. 23. Oily fossil fuel.
  11. 25. Anphibious vehicles to put out fires.
  12. 26. Human actions that don't effect health.
  13. 27. A large volcanic crater.
  14. 30. Waste water and excrement conveyed in sewers.
  15. 34. Point on the surface first hit by seismic waves.
  16. 35. Professional figure in the prevention and extinguishing of fires.
  17. 38. Substance used for fertilizing
  18. 40. Mass of snow falling down the valley.
  19. 41. Elements that a company needs to manufacture its products.
  20. 43. Escape from danger.
  21. 45. Possibility of suffering damage.
  22. 48. Huge waves of water resulting from underwater earthquake.
  23. 49. Event that causes ground movements.
  24. 50. Liberation from a state of suffering.
  25. 51. Mixture of hydrogen and carbonic monoxide.
  26. 53. Activity carried out to help.
Down
  1. 1. Destruction of forests and woods.
  2. 3. Column of air.
  3. 6. Give help.
  4. 9. Action that aims to reduce risk factors.
  5. 10. Tropical cyclone.
  6. 11. Animal dung used for fertilizing land.
  7. 14. Area of origin of earthquake.
  8. 15. Civil defence agency.
  9. 16. Fall of earthy and rocky material.
  10. 19. Higly toxic chemical compound.
  11. 20. Biological differentation.
  12. 21. Solid fossil fuel.
  13. 22. Overflowing of rivers.
  14. 24. People who help without compensation.
  15. 28. Defense of an asset.
  16. 29. Increase in Earth's temperature.
  17. 31. A change in global or regional climate patterns caused by using of fossil fuel.
  18. 32. Irreparable damage.
  19. 33. Destructing action of fire.
  20. 36. Misfortune.
  21. 37. H2O.
  22. 38. The three elements necessary for combustion.
  23. 39. A dark, thick flammable liquid from wood or coal.
  24. 42. Waves generating by an earthquake.
  25. 44. Discarded as worthless, defective, or of no use.
  26. 46. Contamination of natural elements, water, air and soil.
  27. 47. A place, person or thing from which something originates or can be obtained.
  28. 52. Our star.