Question

give me a short note on oxygen cycle

Answer 1

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→ OXYGEN CYCLE

★ Oxygen is a very important element on our earth . It is found in the element form in the atmosphere to the extent of 21% . It also occurs extend Shivali in the combined form in the earth's crust as well as also in the air in the form of carbon dioxide . In the earth crust , it is found as the oxides of most medals and silicon, and also as carbonate, sulphate, nitrate and other minerals. It is also an essential component of most biological molecules like carbohydrates, proteins, nucleic acids and fats .

here the oxygen cycle , we are mainly referring to the cycle that maintains the level of the oxygen in the atmosphere. Oxygen from the atmosphere is used up in three processes, namely combustion, respiration and in the formation of oxides of Nitrogen . Oxygen please return to the atmosphere in only one major process, that is photosynthesis . This forms the broad outline of Oxygen cycle in nature .

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Answer 2

The oxygen cycle is the biological cycle of oxygen with in its four main reservoirs the atmosphere (air) the total content of biological matter within the biosphere ( the global sum of all ecosystem) the hydrosphere ( the combined mass of water found on, under, and over the surface of planet earth)