Enviro IG 2 (Group 1 Revision)

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Across
  1. 1. the build-up of toxins in a foodchain
  2. 4. rocks formed from heat and pressure
  3. 7. the main way to disinfect water (treatment)
  4. 8. contaminates drinking water and leads to diseases
  5. 9. the rock and soil overlying a mine
  6. 10. the element with the symbol P
  7. 12. a ship design to prevent oil spills (p44)
  8. 16. when living things are used to remove toxic chemicals from a mine
  9. 20. international treaty to prevent marine pollution
  10. 21. the farming of livestock only
  11. 23. boiling a solution to purify it (water)
  12. 24. the element with the symbol K
  13. 25. the breaking down of organic waste using bacteria (2)
  14. 27. farming in a building to control many factors
  15. 28. the technique of growing other crops between rows of a main crop to maximise nutrients
  16. 29. rocks formed from layers of sediment
Down
  1. 2. the farming of crops only
  2. 3. energy derived from uranium
  3. 5. rocks formed from cooling magma
  4. 6. an item or resource that will not be used up/ can be replaced
  5. 11. energy from hot rocks under the earth's surface
  6. 13. algae overgrowth in lakes neighbouring farms
  7. 14. a mosquito is an example of this
  8. 15. another word for burning waste
  9. 17. energy from the sun
  10. 18. a waterborne disease
  11. 19. process to obtain natural gas or oil from cracking open shale rock
  12. 22. a type of organic fertiliser
  13. 26. energy derived from burning wood
  14. 30. water stored underground in porous rocks