Why does life require oxygen and not some other gas like nitrogen for example.
Is there something specific in oxygen that life needs to survive?
In: 14
not all life requires oxygen, for some organisms it is toxic. oxygen is an extremely corrosive chemical that gives off energy (exothermic) when you combine it with just about anything. it is very abundant on earth and in the universe, but not always in a form that can be easily accessed. interestingly, the first organisms on earth used sulphur, which is directly below oxygen on the periodic table, so a lot of similarities.
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