Unit 4 crossword

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Across
  1. 1. an area of land permanently saturated or filled with water
  2. 3. the part of the water cycle in which the water flows over the land as surface water rather than be absorbed into groundwater or evaporating
  3. 4. type of peat accumulating wetland fed by mineral rich ground or surface water
  4. 6. the wastewater from domestic, commercial, and industrial sources carried by sewers
  5. 8. a wetland of soft, spongy consisting mainly of partially decayed plant matter called peat
  6. 11. any substance used to kill, repel, or control certain forms of plant or animal life that are considered to be pests
  7. 12. water that has infiltrated the ground to fill the spaces between sediments and cracks in rock
  8. 13. of or relating to or living actively moving water
  9. 15. the cultivation or growth of a single crop or organism especially on agricultural or forest land
  10. 16. the science of raising plants and/or animals for food, clothing, or other useful products
  11. 17. any animals lacking a backbone and large enough to see without the aid of a microscope
  12. 18. near the shore where sunlight penetrates all the way to the sediment and allows aquatic plants grows
  13. 20. an area of land that drains or shed water into a specific water body
  14. 21. a chemical or biological substance which harms water, air, or land quality
  15. 23. any toxic substance that is used to kill insects
  16. 24. of or relating to or living in still water such as lakes, ponds, or swamps
  17. 25. located below the thermocline where the sunlight does not penetrate
Down
  1. 2. the process involving loosening and turning of soil in agricultural fields
  2. 4. pesticides that kill or prevent the growth of fungi and their spores
  3. 5. area where water covers the soil or is present either at or near the surface of the soil all year or for varying periods of time during the year
  4. 7. a collection of principles to apply for farm production processes in order to get better agriculture products
  5. 9. chemical used to manipulate or control undesirable vegetation
  6. 10. the agricultural process of applying controlled amounts of water to land to assist in the production of crops as well as grow landscape plants and lawns
  7. 14. soil that is poor quality so that plants cannot grow in it
  8. 18. the open water area where light does not generally penetrate all the way to the bottom
  9. 19. the lowest ecological zone in a water body, and usually involves the sediments at the seafloor
  10. 22. the agricultural preparation of soil by mechanical agitation of various types, such as digging, stirring, and overturning