BIOGEOCHEMICAL CYCLES

Edit Answers
123456789101112131415161718192021222324252627282930
Across
  1. 7. the second most abundant element in organisms by mass and is present in all organic molecules
  2. 8. a type of biogeochemical cycle, in which the reservoir is the air or the oceans via evaporation
  3. 10. corrosive rain caused by rainwater falling to the ground through sulfur dioxide; causes damage to aquatic ecosystems
  4. 11. this process causes fossil fuels to release different nitrogen oxides
  5. 12. occurs when other salts deposit out as sediment and rock in shallow seas, eventually to be weathered and recycled
  6. 14. a phase in the sedimentary cycle where weathering releases minerals from Earth’s crust in the form of salts, some of which dissolve in water
  7. 15. a type of biogeochemical cycle, in which the reservoir is the Earth’s crust
  8. 17. percentage of water in the human body
  9. 19. contains 97.5% of the water in the biosphere
  10. 20. it exists in the pores between particles in dirt, sand, and gravel or in ghe fissures in rocks
  11. 22. it is an essential element for the molecules of living things; cycles between the oceans, land, and atmosphere
  12. 26. it is the water inside living things
  13. 27. it occurs when bacteria converts the nitrates into nitrogen gas
  14. 28. the cycle wherein any of the natural pathways by which essential elements of living matter are circulated
  15. 29. the process by which sulfur falls directly from the atmosphere
  16. 30. process used to obtain drinkable water from the ocean
Down
  1. 1. it is the process of water movement through plants
  2. 2. the only biologically important inorganic form; used by plants to absorb and synthesize organic compounds
  3. 3. it is characterized by excessive plant and algal growth caused by nutrient runoff from fertilizers
  4. 4. area of the Earth where water movement and storage occur
  5. 5. it is second only to nitrogen in abundance among uncombined elements in the atmosphere
  6. 6. natural fuels such as coal or gas, formed in the geological past from the remains of living organisms
  7. 9. it enters the living world through free-living and symbiotic bacteria
  8. 13. the process in which water vapor becomes liquid and forms clouds
  9. 16. beginning of this revolution is marked by the rise in demand in fossil fuels
  10. 18. the process by which water changes from a liquid to a gas or vapor
  11. 21. this process in rocks causes phosphate to be added to soils
  12. 23. nitrogen process where nitrogen gas is converted into ammonia, which later turns to ammonium
  13. 24. another term for non-living things
  14. 25. product of condensation of atmospheric water vapor falling on the ground