Questions & Answers about La bomba dañó el edificio.
Dañó is the preterite form of dañar, used for a completed action in the past.
So La bomba dañó el edificio means the damaging happened as a finished event.
Compare:
- dañó = damaged
- daña = damages / is damaging
- dañaba = was damaging / used to damage
In this sentence, the preterite is the natural choice because it describes a single completed event.