Biogeochemical Cycles and Food Chain

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Across
  1. 3. The process where animals and humans breathe or return Carbon Dioxide to atmosphere
  2. 5. loss of excess water from land plants, and skin of the animals
  3. 6. During this process producers take up carbon dioxide and give us oxygen to breathe and carbohydrates to eat
  4. 8. the process where nitrogen is returned to the atmosphere
  5. 10. A sequence of organism with each being a source of food is represented by a__________
  6. 12. This explains the movement of Carbon through the environment
  7. 13. Rain, snow, sleet, hail
  8. 17. Vulture is an example of ____________ because it eats only meat.
  9. 18. Water flowing down hill to rivers, streams, lakes and oceans
  10. 19. A map of who eats whom in an ecosystem is called a_______________
  11. 20. When liquid water changes to water vapor
Down
  1. 1. Too much carbon in the atmosphere is leading to_____________________________
  2. 2. 78% of the earth’s atmosphere is made up of this element
  3. 4. When bacteria or legumes convert atmospheric nitrogen into the more usable ammonia
  4. 7. An Organism that eat only plants
  5. 9. Nitrites and nitrates are used by plants to produce_________ acids
  6. 11. Another name for the water cycle is___________ cycle.
  7. 14. the process when water vapor changes to liquid water
  8. 15. An organism that eats both plants and animals
  9. 16. is the biogeochemical cycle that describes the movement of phosphorous through the lithosphere, hydrosphere and biosphere