Something soily

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Across
  1. 4. slow process of organic matter of nitrogen and phosphorus broken down
  2. 7. PAH
  3. 8. a common organic soil pollutant that comes from accidents from the petroleum industry
  4. 9. used in the synthesis of enzymes and chlorophyll
  5. 10. controls fungi
  6. 11. used in the synthesis of amino acids
  7. 12. PCB
  8. 13. sweet soil
  9. 14. kills unwanted plants or weeds
Down
  1. 1. accumulation of water soluble ions or salts in the soil from continuous crop growing
  2. 2. common organic soil pollutant that comes from PCBs and ship paints
  3. 3. common organic soil pollutant that comes from pesticides and fungicides
  4. 5. man made chemical that kills insect pests
  5. 6. mixture of non-living organisms in different stages of decomposition caused by chemical and biological action
  6. 8. used in synthesis of enzymes and storage of energy