Using a bellows can do what to the oxygen near a fire? 
increase evaporation diminish absorb decrease It expands electrically heat
A B C D E F G H
Then nothing was heard but the bellows which fanned the fire of the furnace.
Using bellows can increase the oxygen near a fire.
Using a bellows can do what to the oxygen near a fire?  (A) increase (B) evaporation (C) diminish (D) absorb (E) decrease (F) It expands (G) electrically (H) heat