Carbon residue
USA Today Quick Cross clue · Across · 4 letters · last seen July 26, 2026
Answer
S O O T
About this clue
“Carbon residue” is a USA Today Quick Cross clue and its answer is SOOT (4 letters). The Quick Cross is USA Today’s daily 4×4 mini crossword. Use the links above to view the rest of that day’s grid, or browse more Quick Cross answers.