It is not the intent of this publication to. restrict the authority of the joint force. commander (JFC) from organizing the force. and executing the mission in a manner the JFC. deems most appropriate to ensure unity of. effort in the accomplishment of the overall. mission.
Breathing is only one of the processes that delivers oxygen to where it is needed in the body and removes excess carbon dioxide. The next process in this chain of events is the transport of these gases throughout the body by the circulatory system, and then their uptake or release from the respiring cells.
The answer is around twenty percent. Itâs true: even though we sometimes assume that all air is oxygen, only about a fifth of the atoms that make up our atmosphere are oxygen. The rest is things like nitrogen, carbon dioxide and hydrogen. Nevertheless, thatâs enough oxygen to breathe comfortably, so you can relax.