Question

what is Oxygen cycle?​

Answer 1

Answer:

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Explanation:

The oxygen cycle is the cycle that helps move oxygen through the three main regions of the Earth, the Atmosphere, the Biosphere, and the Lithosphere. ... This also has some free oxygen produced from photosynthesis and other life processes. The largest reservoir of oxygen is the lithosphere

Answer 2

Answer:

oxygen is an abundant element next to the nitrogen,on our earth. it is found in the elemental form in the atmosphere to the extent of nearly 21%. it also occurs extensively in the combined form in the earth's crust as well as in the air in the form of carbon dioxide.most metals of oxides are found in crust.it is also an essential component of most biological molecules like carbohydrates,proteins,nucleic acids and fats(or lipids).it is also present as carbonate,sulphate,nitrate and other compounds.