Question

Explain ‘Carbon cycle’.

Answer 1

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.