what is a oxegen cycle please short answer
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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. The Oxygen cycle is how oxygen is fixed for freed in each of these major regions. ... In the atmosphere Oxygen is freed by the process called photolysis.
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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 respires and return in to the air and water as carbon dioxide .
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