An example of an oxymoron in “overhead over s. e. asia” is “rich seas” “a disk of fire” “snow that burns” “white phosphorus”

The answer to the question is snow that burns

A great example of an oxymoron in "Overhead Over S. E. Asia" is the term snow that burns. An oxymoron is a phrase which has contradictory terms appear in conjunction. In this case, snow is icy and col and cannot burn, so the idea of snow burning is an oxymoron.