To live we need to breathe.

Photo by Brett Jordan on Unsplash

Question — Roughly, how much air does an average adult human inhale in a day?

4,000 / 8,000 or 11,000 litres ?

We breathe in air which contains around 20% oxygen, our respiratory system consumes about a quarter of that oxygen with every breath…

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Andra Forbes

Andra Forbes

I hope you enjoy my articles about the Universe and life, some of them might stir your imagination, others should amaze you. Enjoy, regards Andra.