Carbon Cycle (Gaseous Cycle)

  • Carbon is a minor constituent of the atmosphere as compared to oxygen and nitrogen.
  • However, without carbon dioxide life could not exist because it is vital for the production of carbohydrates through photosynthesis by plants.
  • It is the element that anchors all organic substances from coal and oil to DNA (deoxyribonudeic acid: the compound that carries genetic information).

  • Carbon is present in the atmosphere, mainly in the form of carbon dioxide (CO2).
  • Carbon cycle involves a continuous exchange of carbon between the atmosphere and organisms.
  • Carbon from the atmosphere moves to green plants by the process of photosynthesis, and ....
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