what is oxygen co2 cycle
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the various processes by which the proportion of co2 in atmosphere is kept constant constitute the carbon cycle.
eg - at night , plants take oxygen and gives out carbon dioxide.
the various processes by which the proportion of o2 in atmosphere is kept constant constitute the oxygen cycle.
eg- oxygen is added to the atmosphere mainly by photosynthesis and little breakdown of ozone.
eg - at night , plants take oxygen and gives out carbon dioxide.
the various processes by which the proportion of o2 in atmosphere is kept constant constitute the oxygen cycle.
eg- oxygen is added to the atmosphere mainly by photosynthesis and little breakdown of ozone.
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Oxygen cycle, circulation of oxygen in various forms through nature. Free in the air and dissolved in water, oxygen is second only to nitrogen in abundance among uncombined elements in the atmosphere. Plants and animals use oxygen to respire and return it to the air and water as carbon dioxide (CO2)
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