Question

which sentence states a fact?
the city of dubrovnik, croatia, once had the third - largest navy in the mediterranean.
the city of dubrovnik, croatia, located nearly 250 miles from the capital city of zagreb, is better to visit during the summer festival season.

Explanation:

A fact is a verifiable statement, while a subjective claim reflects personal opinion. The second sentence contains the subjective judgment "is better to visit", which cannot be objectively proven. The first sentence makes a verifiable claim about Dubrovnik's historical navy status.

Answer:

The city of Dubrovnik, Croatia, once had the third-largest navy in the Mediterranean.