Answers

2015-04-29T15:50:53+05:30
The process of inhalation that is taking oxygen inside and the process of exhalation that is throwing out the carbon di oxide.
This process is done by diaphram that is a pear shaped organ after lungs. When diaphram contracts o2 rich air is taken in and when it relaxes co2 is thrown out.
Without breathing our lives won't be possible and we would not be able to live.
Hope it helps!
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