Who discovered that we breathe oxygen and release carbon-dioxide?
Answers
Explanation:
Priestley died on February 6th, 1804 (aged 70) in Pennsylvania, the US. His main contributions to science are: Invented soda water (water with carbon dioxide). Discovered oxygen.
Joseph Priestley
He discovered the phenomenon that we breathe oxygen & release carbon dioxide by an experiment which he carried out in 1774, in which a rat kept in a airtight enclosure died due to suffocation exhausting all the oxygen of the enclosure(leaving only carbon dioxide & nitrogen).If the enclosure was also contaning photosynthesizing plant then the rat survived.the Gases in enclosure were oxygen, carbon dioxide, nitrogen(as we all know that plant release oxygen & take carbon dioxide so both got survived Rat due oxygen from plant & Plant due to Carbon dioxide from rat as carbon dioxide is necessary for photosynthesis.)
hope the answer will help you