Oxygen can combine with carbon to form two compounds, carbon monoxide and carbon dioxide. the ratio of the masses of oxygen that combine with a given mass of carbon is 1:2.
Best Answer: colonel is the highest of those listed followed by captain and then lieutenant, those three are all commisioned officers. a sergeant is a non commisioned officer and has different responsibilities. Source(s): Docbrown Â· 1 decade ago.
In most armies the rank of sergeant is classified by NATO as OR-5 and corresponds to command of a squad (or section). In Commonwealth armies, it is a more senior rank OR-6, corresponding roughly to a platoon second-in-command.