Describe the Oxygen’s biogeochemical cycles and the effects of human activities upon them, mentioning the present and possible future situation in r

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Describe the Oxygen’s biogeochemical cycles and the effects of human activities upon them, mentioning the present and possible future situation in r

Describe the Oxygen’s biogeochemical cycles and the effects of human activities upon them, mentioning the present and possible future situation in relation to the security of the cycles

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please use paraphrasing referencing as well as quotes in the essay.

Describe the Oxygen’s biogeochemical cycles and the effects of human activities upon them, mentioning the present and possible future situation in relation to the security of the cycles