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.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  sergeant(Noun) UK army rank with NATO code OR-6, senior to corporal and junior to warrant officer ranks. 2  sergeant(Noun) The highest rank of noncommissioned officer in some non-naval military forces and police.