SOLUTION
A survey question is biased if it is phrased or formatted in a way that skews people towards a certain answer. Survey question bias also occurs if your questions are hard to understand, making it difficult for customers to answer honestly.
Considering the survey question given,
"Do you agree that an extremely costly and dangerous skate park should be built in our town?"
The word "extremely costly or dangerous" shows or give a clue to an unpleasant answer,
hence
The question is Biased