Enviro IG 3 Revision (CH1-7)

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Across
  1. 4. natural predators remove pests.
  2. 9. the gas that makes up most of our atmosphere.
  3. 10. wave and ___ power harness energy from the ocean.
  4. 12. boundary causing earthquakes.
  5. 15. mixture of smoke and fog.
  6. 16. when cold air moves down valley sides trapping heat & pollution.
  7. 18. unrefined oil.
  8. 19. legal limit of fish to catch.
  9. 21. how any rock turns back into magma.
  10. 24. depletes ozone layer.
  11. 25. organic fertiliser (food waste).
  12. 26. 200m deep where light can penetrate (in ocean).
  13. 27. plate boundary that causes sea-floor spreading.
  14. 29. rock cracked in fracking.
  15. 30. rotation of tropical cyclone in Southern Hemisphere.
  16. 31. destructive volcano.
  17. 32. when unintended fish are caught.
  18. 34. greenhouse gas from agriculture.
  19. 36. terracing, contour ploughing and ___ reduce soil erosion.
  20. 39. the worst fossil fuel.
  21. 41. a water borne disease.
  22. 43. a ___ needs to be built to create hydroelectric energy.
  23. 44. rock made from cooling magma.
  24. 46. used to maintain the temp in a home.
  25. 47. producers of the sea.
  26. 49. cold water moves upwards bringing nutrients from sea floor.
  27. 52. the centre of a tropical cyclone.
  28. 53. water stored in porous rock underground.
  29. 54. taking salt out of water.
  30. 56. boiling water to purify.
  31. 57. using too much of the same insecticide causes ___.
Down
  1. 1. a type of energy that has "net zero" emissions.
  2. 2. crop ___ is when the farmer changes the crop on a field regularly.
  3. 3. ocean crust is made from this.
  4. 5. causes fold mountains.
  5. 6. tropical cyclone in america.
  6. 7. using plants to extract toxins from soil (mine restoration).
  7. 8. mixture of sand, silt, clay.
  8. 11. the mosquito is a ___ of disease.
  9. 13. genetically modified organism.
  10. 14. used to control weeds.
  11. 15. farming for a community (not to sell).
  12. 17. caused by earthquake under water.
  13. 18. a type of watering plants that reduces evaporation.
  14. 20. scale used to measure seismic activity.
  15. 22. when fertiliser enriches a nearby body of water (bad).
  16. 23. toxins increasing up a food chain.
  17. 28. formed from destructive boundary.
  18. 33. farming in water without soil.
  19. 34. a type of metamorphic rock.
  20. 35. three main elements in fertiliser.
  21. 37. layer of atmosphere that ozone layer is in.
  22. 38. hot gas, volcanic bombs and ash from a volcano.
  23. 40. ___ rocks helps use this resource sustainably.
  24. 42. precipitation with a pH of less than 6.
  25. 45. the overlying material that is removed for mining.
  26. 48. volcanic mudslide of ash.
  27. 50. spray used to clean an oil spill.
  28. 51. wind that blows in the same direction (often).
  29. 55. origin of earthquake beneath surface.