Explain ‘Carbon cycle’.
Carbon cycle is the cyclic flow of carbon in the atmosphere.
- The major processes which help in the circulation of carbon in the atmosphere and through the organisms is photosynthesis and respiration.
- Respiration requires carbohydrates and oxygen and releases carbon dioxide, water and energy. Photosynthesis requires carbon dioxide and water and produces carbohydrates and oxygen.
- The carbon trapped in organisms which is not released by respiration is released during decomposition in the atmosphere or gets converted to fossil fuels.
- The carbon trapped in fossil fuels is released during combustion.
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