• Thumbnail for Carbon cycle
    The carbon cycle is that part of the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere...
    99 KB (10,261 words) - 23:10, 28 July 2024
  • Thumbnail for CNO cycle
    The CNO cycle (for carbon–nitrogen–oxygen; sometimes called Bethe–Weizsäcker cycle after Hans Albrecht Bethe and Carl Friedrich von Weizsäcker) is one...
    36 KB (2,527 words) - 18:32, 16 July 2024
  • Thumbnail for Carbonate–silicate cycle
    The carbonate–silicate geochemical cycle, also known as the inorganic carbon cycle, describes the long-term transformation of silicate rocks to carbonate...
    21 KB (2,540 words) - 07:35, 3 June 2024
  • Thumbnail for Biogeochemical cycle
    biogeochemical cycles include the carbon cycle, the nitrogen cycle and the water cycle. In each cycle, the chemical element or molecule is transformed and cycled by...
    54 KB (5,566 words) - 08:07, 8 July 2024
  • Thumbnail for Calvin cycle
    The Calvin cycle, light-independent reactions, bio synthetic phase, dark reactions, or photosynthetic carbon reduction (PCR) cycle of photosynthesis is...
    24 KB (2,774 words) - 22:35, 12 September 2024
  • Thumbnail for Oceanic carbon cycle
    The oceanic carbon cycle (or marine carbon cycle) is composed of processes that exchange carbon between various pools within the ocean as well as between...
    58 KB (6,366 words) - 13:32, 16 September 2024
  • Thumbnail for Atmospheric carbon cycle
    The atmospheric carbon cycle accounts for the exchange of gaseous carbon compounds, primarily carbon dioxide (CO2), between Earth's atmosphere, the oceans...
    30 KB (2,893 words) - 23:39, 6 August 2024
  • Thumbnail for Terrestrial biological carbon cycle
    The carbon cycle is an essential part of life on Earth. About half the dry weight of most living organisms is carbon.[citation needed] It plays an important...
    10 KB (1,220 words) - 22:11, 23 April 2024
  • Thumbnail for Permafrost carbon cycle
    The permafrost carbon cycle or Arctic carbon cycle is a sub-cycle of the larger global carbon cycle. Permafrost is defined as subsurface material that...
    60 KB (7,056 words) - 10:18, 20 July 2024
  • Thumbnail for Biological carbon fixation
    biological carbon fixation plays a crucial role in the global carbon cycle, as it serves as the primary mechanism for removing CO2 (carbon dioxide) from...
    43 KB (3,852 words) - 14:24, 18 July 2024
  • Thumbnail for C4 carbon fixation
    C4 carbon fixation or the Hatch–Slack pathway is one of three known photosynthetic processes of carbon fixation in plants. It owes the names to the 1960s...
    38 KB (4,488 words) - 23:16, 8 May 2024
  • Thumbnail for Carbon sequestration
    biosequestration) and geologic. Biologic carbon sequestration is a naturally occurring process as part of the carbon cycle. Humans can enhance it through deliberate...
    119 KB (13,517 words) - 03:26, 16 September 2024
  • Thumbnail for Carbon
    compounds form the basis of all known life on Earth, and the carbon-nitrogen-oxygen cycle provides a small portion of the energy produced by the Sun, and...
    95 KB (10,852 words) - 03:22, 27 July 2024
  • Thumbnail for Water cycle
    The water cycle (or hydrologic cycle or hydrological cycle), is a biogeochemical cycle that involves the continuous movement of water on, above and below...
    37 KB (4,699 words) - 17:18, 9 September 2024
  • Thumbnail for Climate change feedbacks
    rate at which plant matter accumulates CO2 as part of the carbon cycle.: 967  The carbon cycle absorbs more than half of CO2 emissions every year into plants...
    77 KB (8,713 words) - 02:36, 16 September 2024
  • Thumbnail for Deep carbon cycle
    carbon cycle (or slow carbon cycle) is geochemical cycle (movement) of carbon through the Earth's mantle and core. It forms part of the carbon cycle and...
    20 KB (2,186 words) - 23:14, 23 January 2024
  • Thumbnail for Carbon dioxide in Earth's atmosphere
    atmosphere, carbon dioxide is a trace gas that plays an integral part in the greenhouse effect, carbon cycle, photosynthesis and oceanic carbon cycle. It is...
    76 KB (10,569 words) - 14:00, 10 September 2024
  • Thumbnail for Nutrient cycle
    nutrients is cyclic. Mineral cycles include the carbon cycle, sulfur cycle, nitrogen cycle, water cycle, phosphorus cycle, oxygen cycle, among others that continually...
    51 KB (5,269 words) - 10:59, 27 August 2024
  • Thumbnail for Phosphorus cycle
    The phosphorus cycle is the biogeochemical cycle that involves the movement of phosphorus through the lithosphere, hydrosphere, and biosphere. Unlike...
    40 KB (4,498 words) - 02:13, 22 July 2024
  • Thumbnail for Carbon sink
    an important part of the natural carbon cycle. An overarching term is carbon pool, which is all the places where carbon on Earth can be, i.e. the atmosphere...
    17 KB (4,341 words) - 02:19, 26 August 2024
  • Thumbnail for Carbon dioxide
    source of available carbon in the carbon cycle, atmospheric CO2 is the primary carbon source for life on Earth. In the air, carbon dioxide is transparent...
    113 KB (13,046 words) - 17:05, 11 September 2024
  • Thumbnail for Oxygen cycle
    O_{2}+O} \qquad (\lambda \lesssim 300~{\text{nm}})} Carbon cycle Nitrogen cycle Hydrogen cycle Dark oxygen Knoll AH, Canfield DE, Konhauser K (2012)...
    16 KB (1,539 words) - 03:45, 23 August 2024
  • Thumbnail for Soil carbon
    to the soil capacity in our ecosystem. Soil carbon is a carbon sink in regard to the global carbon cycle, playing a role in biogeochemistry, climate change...
    39 KB (4,305 words) - 23:58, 11 August 2024
  • Thumbnail for Citric acid cycle
    reactions to complete the cycle. The cycle consumes acetate (in the form of acetyl-CoA) and water, reduces NAD+ to NADH, releasing carbon dioxide. The NADH generated...
    56 KB (6,064 words) - 21:43, 12 September 2024
  • Thumbnail for Dissolved organic carbon
    greatest cycled reservoirs of organic matter on Earth, accounting for the same amount of carbon as in the atmosphere and up to 20% of all organic carbon. In...
    79 KB (9,614 words) - 15:45, 19 April 2024
  • Thumbnail for Silica cycle
    silica cycle has significant overlap with the carbon cycle (see carbonate–silicate cycle) and plays an important role in the sequestration of carbon through...
    37 KB (4,252 words) - 22:38, 21 August 2024
  • table. The carbon cycle is a biogeochemical cycle that is important in maintaining life on Earth over a long time span. The cycle includes carbon sequestration...
    25 KB (2,576 words) - 09:50, 7 September 2024
  • Thumbnail for Marine snow
    nutrient cycling by not only heterotrophs but by autotrophs as well. There is a mismatch from the microbial carbon demand in the deep ocean and the carbon export...
    22 KB (2,737 words) - 21:03, 24 June 2024
  • Thumbnail for Climate change
    years ago. The remaining carbon budget for staying beneath certain temperature increases is determined by modelling the carbon cycle and climate sensitivity...
    313 KB (27,931 words) - 19:42, 15 September 2024
  • Thumbnail for Photorespiration
    Photorespiration (also known as the oxidative photosynthetic carbon cycle or C2 cycle) refers to a process in plant metabolism where the enzyme RuBisCO...
    27 KB (3,063 words) - 23:55, 21 May 2024