I think the only reason it would be vulnerable is that it is close to a tectonic plate or the plate that creates earthquakes.
Answer:
Understand subjects. The subject is the noun that the verb is referring to. ...
Determine the subject. Once you're familiar with subjects, you'll need to find the corresponding noun for the verb. ...
Remove the ending. ...
Conjugate "-ar" verbs. ...
Conjugate "-er" verbs. ...
Conjugate "-ir" verbs
I believe the answer is Que. I'm sorry if I'm wrong that sounds right.