Carbon Cycle Crossword

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Across
  1. 1. major component of many minerals such as limestone
  2. 4. outermost layer of the Earth that is comprised of soil
  3. 8. compound necessary for plant cells to perform photosynthesis
  4. 9. bad source of carbon for climate change(2 words)
  5. 11. natural cause of greenhouse gases
  6. 12. chemical that undergoes nitrification
  7. 15. to isolate or hide away - done with carbon via photosynthesis
  8. 16. planet that has 154,000 times as much carbon dioxide in the atmosphere as Earth
  9. 17. Can also be coined the zone of life on Earth
  10. 19. Consists of 5 layers - troposphere is one of them
Down
  1. 1. Humans and animals breathe this out (2 words)
  2. 2. short for a group of 1300 independent scientific experts that have investigated greenhouse gas increases
  3. 3. famous volcanic eruption that buried Pompeii
  4. 5. scientific name for the solid parts of a planet
  5. 6. CO2 built-up and stored in our atmosphere acts as an insulator causing this (2 words)
  6. 7. Plants do this to take in carbon dioxide
  7. 8. short-form for chlorofluorocarbons
  8. 10. name of event that took place at Lake Nyos in 1986 (2 words)
  9. 13. part of a plant that's made of water
  10. 14. name given to the act of breathing
  11. 18. culprit in cow burps, farts and poops that contributes to global warming