Ends the TAA process and FDP Phase IV. Provided to the Army provides the operating and generating force structure at the standard requirements code (SRC) level of detail for the next 2-5 years Key input to the POM process
Both oxygen and hydrogen are reactive, colorless gases that are found in the air and are essential for your survival. The primary difference between the two elements is their physical and chemical properties.
However, hydrogen and oxygen have some common properties. They are both colorless, odorless gases, and they both readily react with other elementsâmaking them  reactive elements. But in many ways they are very different from each other. Hydrogen has the lowest density of all the elements.