Nutrients cycles

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The carbon cycle

Processes involved:

  • Photosynthesis - takes in co2
  • Respiration - produces co2
  • Decomposistion - Saprobiotic microorganisms break down dead mater and release co2 through respiration
  • Combustion - of fossil fuels and deforestation = releases co2

Nitrogen cycle:

4 main stages

  • Ammonification
  • Nirogen fixation
  • Nitirifcation
  • Denitrification


Saprobiotic microgorganisms break down ammonium containing compounds (such as urea) into ammonium ions in the soil

Nitrogen Fixation:

Nitrogen gas…


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