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.
In their natural state, LPG (Propane and Butane) and Natural Gas (Methane) are all odourless gases. The distinctive smell that people associate with these gases is actually added to them as a safety measure. For many decades, the gaseous fuels industry has added odourants to LPG and Natural Gas so that people can detect gas leaks with nothing more than their noses.