Question

What is the reason for the lack of oxygen in the atmosphere?​

Answer 1

Explanation:

One potential hypothesis is that a global increase in erosion rates has led to a steady decline in free O2 within the atmosphere. In a process similar to iron rusting (where iron binds with oxygen during oxidation) weathering rocks can remove free oxygen from the atmosphere

What causes an oxygen deficient atmosphere?

A reduction in oxygen levels in a confined space could be due to the effects of combustion; it might be caused by microbial activity (such as the process of fermentation); it could be due to the oxidisation (rusting) of the internal surface of a tank or pipe; or it might be that the oxygen has been displaced by another .

Answer 2

Answer:

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