Explain carbon cycle in its own …
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Yogita Ingle 4 years, 5 months ago
Carbon is found elemental form as well as combined form on the Earth.
In combined state it is present as carbon dioxide in the atmosphere, as carbonate and hydrogen-carbonate salts in various minerals and as life molecules.
It is through photosynthesis (carried out by life-forms containing chlorophyll) that carbon gets incorporated into life-forms. Photosynthesis converts carbon dioxide (from the atmosphere or dissolved in water) to glucose in the presence of sunlight by all life-forms that contain chlorophyll. These glucose molecules are either converted into other substances or used to provide energy to the organism for carrying out its life processes or building other molecules.
Energy is provided through the process of respiration, which converts glucose back into carbon dioxide. In addition, combustion of fuels to provide energy for various needs like heating, cooking, transportation and industrial processes also releases carbon dioxide to atmosphere. Today the percentage of carbon dioxide in the atmosphere has doubled since the industrial revolution. Thus carbon is cycled repeatedly through different forms by the various physical and biological activities.
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