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Carbon Cycle By: Hortencia Avila, Uriel Lopez, Jeremy Glick Fourth most abundant element in universe Building block of all living things Main Pathway– in and out of living matter Carbon Cycle Carbon Cycle- Circulation of carbon through ecosystems Carbon- A non-metallic element found in coal, petroleum and natural gas. Major component of life. Soil Respiration- Carbohydrates are oxidized and returned to the air by soil microorganisms that decompose dead animals Key Terms Atmosphere- layer of gasses Fossil Fuels- Carbon-rich fuel from ancient animals and plants Photosynthesis- Energy (sun)+ Water+ Carbon dioxide Carbohydrates+ Oxygen Cellular Respiration- Glucose+ Oxygen CO2+ H20+ Energy (ATP) Decomposition- breakdown of matter by bacteria and fungi Key Terms Continued All living organisms contain carbon CO2 is found in all living organisms Plants use carbon dioxide and water to form simple sugars (photosynthesis) Biological Importance of Carbon Carbon Carbon Carbon dioxide is needed for life dioxide is a greenhouse gas is necessary for life, but carbon can be harmful Ecological Importance of Carbon 0.032% in the lithosphere 2 petagrams Amount of Carbon Smallest amount of carbon Approximately 750 petagrams Carbon in the atmosphere 540- 610 gigatons Biosphere 38,00-40,00 metric tons hydrosphere http://www.uwsp.edu/geo/faculty/ritter/geog101/textbook/earth_ system/biogeochemical_cycles.html http://www.actewagl.com/education/Glossary/default.aspx?letter Search=C http://www.eoearth.org/article/Carbon_cycle http://www.infoplease.com/ce6/sci/A0857177.html http://www.oznet.ksu.edu/ctec/Carbon/carboncycle.htm http://www.waterencyclopedia.com/Bi-Ca/Carbon-Dioxide-in-theOcean-and-Atmosphere.html Sources