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.
Best Answer: For a 31 year old, the highest in general would be Captain. There is a little possibility for Major, but not likely. 4 years of college is 21 at the earliest, most likely 22. 4 years as a lieutenant makes them 25-26. A bare, bare, bare... minimum of 4 years as captain makes them 30-31. Captain is usually 6 years on average.