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Question: Do we know any other sources(apart from plants) which produce oxygen?
Asked by jeevan to Arttu, Ceri on 24 Jun 2011.
answered on 24 Jun 2011:
It is easy to produce oxygen from water using electricity, but in nature I don’t think there are any important sources of oxygen other than plants. Therefore having free oxygen in the atmosphere is a good sign of life.
How long would someone live without oxygen before they die?