Final answer:
In the book Because of Mr. Terupt, the fire marshal identified the wallpaper as a fire hazard and told Mr. Terupt to take it down.
Step-by-step explanation:
In the book Because of Mr. Terupt, the fire marshal identified the wallpaper as a fire hazard and told Mr. Terupt to take it down. This means that the wallpaper could potentially catch fire or contribute to the spread of a fire.