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+1 vote
There are some controversies related to law that bans slaughtering of cows in India. And one argument arousing there is that cows can release oxygen while they breathe out. What's the actual science behind this argument? Is it true? Can cows release oxygen?
asked Jun 2, 2017 in Science+Technology by Arshad Malik Level 2 (520 points)

1 Answer

+3 votes

Yes cows really exhale oxygen, and so do all the mammals including human beings.

Cows do not produce oxygen - they are animals, not plants.  Cows, like all other animals, use oxygen and exhale carbon dioxide.  However, the lungs of any animal are not efficient at removing all oxygen from air, so some oxygen that was not absorbed is exhaled.  This is why mouth-to-mouth resuscitation works.

answered Jul 31, 2017 by LEVEL 5 (5,520 points)