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Question
Explain carbon cycle with the help of a flow chart.
Solution
Carbon occurs in various forms on earth. Charcoal, diamond, and graphite are elemental forms of carbon. Combined forms of carbon include carbon monoxide, carbon dioxide, and carbonate salts. All living organisms are made up of carbon-containing molecules like proteins and nucleic acids. The atmospheric carbon dioxide enters into the plants through the process of photosynthesis to form carbohydrates.
From plants, it is passed on to herbivores and carnivores. During respiration, plants and animals release carbon into the atmosphere in the form of carbon dioxide. Carbon dioxide is also returned to the atmosphere through the decomposition of dead organic matter, burning fossil fuels, and volcanic activities. The contribution of carbon to the atmosphere could be reduced by aforestation and lesser use of fossil fuels.
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