Mid Semester Vocabulary Review

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Across
  1. 2. compact and dense soil that give the soil structure
  2. 3. and burn, an agricultural technique that clears large areas of forests and then burns the remaining vegetation
  3. 6. Fire, a very hot wildfire that passes from treetop to treetop
  4. 9. an agricultural technique when crops are planted on steps cut into the sides of mountains
  5. 10. Grade Ore, rock that contains small amounts or mineral or metal ore deposits
  6. 11. Mine Drainage, water pollution from a mine site that has a low pH and dissolved heavy metals
  7. 14. dioxide, this is a greenhouse gas absorbed by trees
  8. 15. Depletion, when it becomes more expensive to process and produce a metal
  9. 17. in the Amazon rainforest this monoculture is responsible for deforestation
  10. 19. erosion, the movement of soil by water or wind
  11. 20. of leaching, a build up of minerals as water passes through the soil
  12. 21. Mining, underground mining that can be very dangerous is mine shafts collapse
  13. 23. a measure of the acidity of soil
  14. 27. Burns, forest rangers intentionally light fires to promote the health of fire dependent ecosystems
  15. 28. the ability of water to move through the soil
  16. 29. where plant roots grow due to high concentration of nutrients
  17. 30. cutting, the clearing of all trees in an area regardless of age or species
  18. 31. the chemical pesticide used in WWII that had toxic impacts on humans birds and fish
  19. 32. using large machines to break up the soil to prepare the soil for planting crops
Down
  1. 1. Species, lichens that breakdown rock to create soil are known as these types of species
  2. 4. an even mixture of clay sand and silt
  3. 5. cutting, a sustainable harvesting technique in which only certain trees are cut
  4. 7. Succession, after a disturbance this is the process through which a forest grows and recovers
  5. 8. any action that can restore the environment after mining is complete
  6. 12. Irrigation, this irrigation technique delivers water to industrial plants using perforated hoses thus conserving water
  7. 13. a large farm that only plants one species of a crop
  8. 16. Community, the most biodiverse forest community
  9. 17. this agricultural technique involves planting a tall sturdy plant as a windbreaker to smaller more fragile plants
  10. 18. litter, dead leaves and organic waste decomposing on top of the surface of the soil
  11. 22. Source Pollution, water pollution that makes its way into run-off water and cannot be tracked back to a source
  12. 24. Source Pollution, water pollution that can be traced back to a specific source
  13. 25. material, weathered rock that has broken down overtime to create the soil layers above it.
  14. 26. a solid inorganic naturally occurring material