Questions & Answers about Bomba je opasna.
Because it has to agree with bomba.
In Croatian, adjectives change their form to match the noun in:
Here, bomba is:
- feminine
- singular
- nominative
So the adjective must also be feminine singular nominative:
- masculine: opasan
- feminine: opasna
- neuter: opasno
That is why you get Bomba je opasna, not Bomba je opasan or Bomba je opasno.