This is grammatically acceptable/correct. English It is common and acceptable for certain types of quiz questions to end with a wh-word (where, who, when, etc.).
English questions are often formed with a wh-word (who, what, when, where, etc.). The wh-word -- or more generally, the wh-phrase -- is occasionally found at the end of the sentence (just as in the OP example, above). However, the wh-phrase is usually "moved" to the beginning of the sentence, which is called "wh-fronting", also known as wh-movement.:
- This creature can be found where? (Ok in certain quiz and other question types.)
- Where can this creature be found? (Usually questions are formed by wh-movement to the beginning of the sentence.)
When the wh-word is in the same location as it's corresponding declarative sentence, this is called "wh in situ" (aka "canonical position" aka "canonical theta position"). The following will intuitively demonstrate the relationship between a simple declarative sentencedeclarative sentence, wh in-situ, and wh-movement via a series of sentence transformations. Note that one can "move" through these transformations forwards or backwards to go from the declarative to the natural interrogative and visa-versa: