Question

what is breathing?????

Answer 1

the process of inhaling of Oxygen and giving out carbon dioxide is called as breathing..

or


breathing is the process of moving air in and out , of the lungs to facilitate gas Exchange with the internal environment.. mostly by bringing in oxygen and flushing out carbon dioxide

Answer 2

Breathing (or respiration, or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly by bringing in oxygen and flushing out carbon dioxide.