From where did Zion get air?
We have seen in the Matrix trilogy that Zion is a last city of humans, situated at Earth's core where it is still warm.
I believe they found a groundwater source, that's why they have a water purifying plant, but since there is no sign of vegetation above the ground or for that matter in Zion, where did it get its air supply ?
Best Answer
Machines. While seemingly an inconsequential detail we get a direct quote on this from Councillor Harmann when he discusses the machines keeping Zion alive with Neo:
[Of] course. That's it. You hit it. That's control, isn't it? If we wanted we could smash them to bits. Although, if we did, we'd have to consider what would happen to our lights, our heat, our air...
He doesn't explain the process but since we can already produce oxygenated air for space stations it shouldn't be a huge leap of the imagination.
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How is there oxygen in the Matrix?
(It is part of The Matrix Comics released by the Wachowskis' company Burlyman Entertainment and was posted on the official website, so it is canon.) Since there is significant plant life left on the Earth, there is enough oxygen for humans on the surface of the Earth.How did machines find Zion?
The machines, especially the Architect program, already knew the location of Zion during the events of the movies. The only reason Zion was allowed to exist because it served a purpose for Matrix.Did Zion destroy 6 times?
Zion, according to The Architect, has been completely destroyed five times by the time of the sixth One, Neo, meets The Architect.Dwight Howard Pushes Zion Williamson Out Of The Air \u0026 Zion Takes HARD FALL
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Answer 2
I agree with Sean Condon that the machines produce oxygen. Passing electricity through water splits it into oxygen and hydrogen. Pretty simple stuff. The process is called electrolysis.
So one simple way Zion could be set up is to use an underground river to provide both fresh drinking water, and a source of hydroelectric power. The electricity could be used to split some of the water into hydrogen and oxygen. The hydrogen could be ejected to the Earth's surface, along with excess carbon dioxide.
I suppose hydrogen could be burned as a fuel. But that depletes oxygen, which is needed for breathing, so I'd vote against that. They already have their hydroelectric power source.
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