E7 Soil

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Across
  1. 2. to release nitrogen and phosphorus to roots
  2. 3. reduces plant growth as the increased concentrations of ions reduce the ability of the roots to take up water
  3. 4. TPhT (2 words)
  4. 6. the organic matter converted into a mixture by bacteria and fungi, smaller molecules such as sugars and amino acids and high molecular mass polysaccharides and proteins (2 words)
  5. 8. decomposed matter arising from the chemical and biological action on plant matter and organisms (3 words)
  6. 10. PCB
  7. 11. removal of essential nutrients and minerals from the soil food web (2 words)
  8. 14. higher in moist soil than in dry soil (2 words)
Down
  1. 1. PAH (2 words)
  2. 5. tetrahedron with silicon covalently bonded to 4 oxygen atoms
  3. 7. results from the weathering of rock and decaying of organic matter
  4. 8. like a sponge (2 words)
  5. 9. can lead to lower crop yield by destroying very small flora and fauna
  6. 12. largest component of soil due to weathering of rock (2 words)
  7. 13. can be caused by overuse of nitrate and phosphate fertilizers