Given the task definition and input, reply with output. You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.

When a mirror is hit by particles of light called photons, it reflects the photons back to us. When photons hit a smooth surface like a mirror, they bounce back off of the mirror at roughly the same angle at which they hit the object, creating a reflection that looks the same.
Why can I see myself in a mirror?