Chapter 13 crossword

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Across
  1. 3. the ignition of the air- fuel charge while the piston is still compressing the charge
  2. 6. , is a metric used in financial analysis to estimate the profitability of potential investments
  3. 7. , is not subjected to any reducing, trimming, or refining process
  4. 9. pattern ,is an ignition technique where fires are ignited in spots instead of strips
  5. 13. represents the change from an endothermic reaction
  6. 14. , is to use strip head fire
  7. 16. fire the practice of intentionally setting a fire
  8. 20. , is used to kill individual stems in precommercial thinning
  9. 21. Fire- is a fire set along the entire perimeter of the attract and allowed to burn wind inward with great intensity.
  10. 22. thinning- it releases over-crowded pine stands to prevent stagnation and increase the growth of remaining trees
  11. 23. fire , is a fire that is set perpendicular to the true wind
  12. 24. thinning-the selective removal of inner branches evenly throughout a tree's crown.
Down
  1. 1. , is a very fine fibril, or fiber-like strand
  2. 2. is the important part of the prescribed fire
  3. 4. ,is a fire whose flames are being pushed by the wind
  4. 5. , is to gauge whether a forest needs fertilization involves collecting leaves for nutrient testing.
  5. 8. , the necessary items for a particular purpose.
  6. 10. this process the energy is lacking
  7. 11. , is a planned silvicultural operation that reduces the number of trees in a stand
  8. 12. , is the study of the forms and features of land surfaces
  9. 15. thinning- is thinning around a wanted tree, over a stand
  10. 17. its observed with no flames is present
  11. 18. , is a horticultural, arboricultural, and silvicultural practice involving the selective removal of certain parts of a plant
  12. 19. , the deliberate integration of trees and grazing livestock operations on the same land