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