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Carbon Cycle

Carbon Cycle. Daniela Cho Denise Lee Sunny Mun Jeanne Wojslaw Period 5. Carbon Cycle. Photosynthesis.

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Carbon Cycle

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  1. Carbon Cycle Daniela Cho Denise Lee Sunny Mun Jeanne Wojslaw Period 5

  2. Carbon Cycle

  3. Photosynthesis Photosynthetic organisms (plants) absorb CO2 through their pores and convert it to simple sugars. The plants remove CO2 from the atmosphere and animals gain CO2 by eating plants or other animals who have consumed plants.

  4. Photosynthesis

  5. Respiration • Plants, animals, decomposers • O2 used to break down organic compounds into CO2 & H2O • Taking in O2 and oxidizing food→ release energy food contains • CO2 → body → released → recycled

  6. Respiration

  7. Deforestation Forests take CO2 from the atmosphere and store it; therefore, when the trees are burnt or rot, the atmospheric CO2 concentration is increased. Deforestation contributes one-third of all CO2 releases caused by people.

  8. Deforestation

  9. Decomposition Decomposers mostly live in the soil and they feed on decaying animals and plants. These microorganisms return carbon to the atmosphere as carbon dioxide by respiration.

  10. Decomposition

  11. Weathering of Rocks Many CO2 atoms trapped in limerock Water recedes → limerock exposed to elements → weathering → CO2 released → CO2 becomes part of carbon cycle

  12. Weathering of Rocks

  13. Fossil Fuels Since the Industrial Revolution, we have been burning fossil fuels like coal and oil. The burning releases carbon dioxide into the Earth’s atmosphere and it is also absorbed by the oceans, plants, and soils.

  14. Fossil Fuels

  15. Sedimentation CO2 from water is converted into CaCO3by shelled organisms. Sediments from shelled organisms accumulate. Sediments rise up to dry land, then carbonates redissolve releasing CO2 into the air & water.

  16. Sedimentation

  17. Amount of Carbon on Earth • Atmosphere- 0.038% (1.9 trillion tonnes) • Lithosphere- 0.032% (66-100 million gigatons) • Biosphere-(540-610 gigatons) • Hydrosphere- 0.041%

  18. Importance Ecological importance: controls the climate change Biological importance: humans contain 18% carbon by weight; plants use carbon dioxide and water to produce simple sugars (carbohydrates)

  19. Works Cited • Photosynthesis,http://grapevine.net.au/~grunwald/une/KLAs/science/photosynthesis.html ,Tuesday 23 2008. • Carbon cycle, http://scienceclarified.com/Ca-Ch/Carbon-Cycle.html ,Tuesday 23 2008. • What Is Decomposition?, http://techalive.mtu.edu/meec/module10/Decomposition.htm ,Tuesday 23 2008. • Tiki the Penguin, http://tiki.oneworld.net/energy/energy.html ,Tuesday 23 2008. • Deforestation,http://www.botany.uwc.ac.za/envFacts/facts/deforestation.htm ,Tuesday 23 2008. • The Long-Term Carbon Cycle, • http://www.carleton.edu/departments/geol/DaveSTELLA/Carbon/long_term_carbon.htm ,Tuesday 23 2008. • CHM 110 - CHEMISTRY AND ISSUES IN THE ENVIRONMENT,http://elmhcx9.elmhurst.edu/~chm/onlcourse/chm110/outlines/carbsediment.html ,Tuesday 23 2008. • Global Carbon Cycle, http://www.bom.gov.au/info/climate/change/gallery/9.shtml ,Tuesday 23 2008. • Sufi Meditation Muraqaba, • http://www.nurmuhammad.com/Meditation/Core/naqshbandimeditationillustration.htm ,Wednesday 24 2008 • Geology.com, http://geology.com/articles/racetrack-playa-sliding-rocks.shtml,Wednesday 24 2008 • Earth Cool, http://www.earth-cool.com/deforestation.htm,Wednesday 24 2008 • Long Term Inorganic Carbon Cycle, • http://www.chemgapedia.de/vsengine/vlu/vsc/en/ch/16/uc/vlus/carboncycle.vlu/Page/vsc/en/ch/16/uc/chemicalcycles/newcarbon/carbonlongterminorg.vscml.html,Wednesday 24 2008 • PhysicalGeography.net, http://www.physicalgeography.net/fundamentals/9r.html,Wednesday 24 2008 • Britannica, http://www.britannica.com/EBchecked/topic/108636/chemical-element/81241/The-hydrosphere#tab=active~checked%2Citems~checked&title=chemical%20element%20%3A%3A%20The%20hydrosphere%20--%20Britannica%20Online%20Encyclopedia,Wednesday 24 2008 • What is Carbon Cycle, http://www.oznet.ksu.edu/ctec/carbon/carboncycle.htm,Wednesday 24 2008 • Infoplease, http://www.infoplease.com/ce6/sci/A0857177.html,Wednesday 24 2008 • Spotlight Pacific, http://www.wwf.ca/satellite/wwfKids/s4w/0506/S4W_June2005_Part2.pdf,Wednesday 24 2008

  20. THE END

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