Final answer:
Unexpected page breaks in a survey could be due to certain features, but Question Separator, Highlight Questions, and Page Transition definitely do not trigger page breaks. They serve for visual differentiation, emphasis, and animation effects, respectively, without creating new pages.
Step-by-step explanation:
If you have noticed unexpected page breaks in your survey without having added them manually, there are certain features that may automatically insert these breaks. However, there are three features that definitely do not trigger page breaks: Question Separator, Highlight Questions, and Page Transition.
The Question Separator is typically a visual line or space that separates questions, but it does not create a new page. Highlight Questions is a feature that may change the visual focus on questions, such as by altering background color or border, but does not affect page layout.
Lastly, Page Transition effects are visual or animation effects that occur when moving from one page to another, not an actual cause for a break in the survey's pages.
On the other hand, features that can generate page breaks include Questions per Page, which controls the number of questions shown before a new page starts, Display Logic, where questions may appear on new pages based on previous answers, and Skip Logic, which can advance respondents to a different page in the survey based on their responses.