Answer:
I would say that this is more of an open-ended question.
Step-by-step explanation:
The reason I think this is because it is asking for something more than "Do the leaves change color?" That would be a closed ended question because it is asking for a simple answer.
I don't think it is a leading question because the question isn't worded in a way that would lead you to answer in a certain way.
Answers to open ended questions require more thought and effort than closed-ended questions, but they generally are pretty clear in what they are asking.