Download aditya tornala cc

By Federico, Abel & Aditya
http://www.youtube.com/watch?v=0Vwa
6qtEih8&feature=player_embedded
Background info & Facts
• Carbon is the 4th most abundant element in the
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Universe
Carbon is the element that anchors all organic
substances
“building block of life”
Organic chemicals are made from carbon more
than any other atom
Earth’s atmosphere contains 0.035% of Carbon.
Diamonds are made out of a form of Carbon
Actual Definition:
 The carbon cycle is the biogeochemical cycle by
which carbon is exchanged among the biosphere,
pedosphere, geosphere, hydrosphere, and
atmosphere of the Earth. It is one of the most
important cycles of the earth and allows for carbon
to be recycled and reused throughout the biosphere
and all of its organisms.
Chemical reactions in the Carbon
cycle
 Respiration
 Photosynthesis
 Consumption
 Sedimentation
 Diffusion
Inorganic and Organic reservoirs
 Organic:
 Plants
 Animals
 Inorganic:
 Atmosphere
 Terrestrial Biosphere
 Oceans
 Earth’s interior
 Sediments like fossil fuels
Pathway of Movement : Ocean
 In the oceans Carbon moves from the Atmosphere to
the ocean surface through Diffusion
 Aquatic plants absorb carbon through Photosynthesis
 Fish and other marine life absorb carbon by Consumption
 Carbon returns to the water and air by Respiration
 When fish die carbon is decomposed to the ocean floor
by Sedimentation
Land
 Plants absorb carbon from the atmosphere Photosynthesis
 Same for animals by Consumption
 Carbon returns to atmosphere by Respiration
 When organisms die carbon is decomposed to the floor by the process by
Sedimentation
Pathway of movement
Human intervention
 Humans burn fossil fuels for energy and release
Carbon Dioxide in the atmosphere (which would
have otherwise stayed underground)
 Causes billion of years of collected carbon deposits to
be burned within a couple-hundred years = abnormal
reaction which would not have happened in nature
 Plants are not keeping up and CO2 is accumulating (
if there is too much carbon dioxide, oxygen will be
reduced and global temperatures will rise)
http://www.youtube.com/watch?v=Fc7CueUYfO
4&feature=related&safety_mode=true&persist_s
afety_mode=1
Bibliography
http://earthobservatory.nasa.gov/Features/CarbonCycle/
http://carboncycle.davidjparsons.com/reactions_resevoirs.ht
m
http://www.windows2universe.org/earth/Water/co2_cycle.
html
http://library.thinkquest.org/11226/why.htm
http://www.cotf.edu/ete/modules/carbon/efcarbon.
html