The key difference is an “issue” already has occurred and a “risk” is a potential issue that may or may not happen and can impact the project positively or negatively. We plan in advance and work out mitigation plans for high-impact risks. For all issues at hand, we need to act immediately to resolve them.

This is classic project management professional terminology, which I knew. But since I'm not a PMP I didn't know the precise definitions so I didn't try to bluff it. In the real world the two things are so different that you can't really point out what the differences are. I was left doing a goldfish impression - mouth opening & closing.

In Jeopardy you wouldn't get the money! That doesn't say what the difference is, it says what each of them are, but yes a reasonable response can be extrapolated from that (my resume did say "attention to detail" even if it didn't say "PMP"). Non-PMP's will probably laugh at the concept that risks can be positive because in any normal dictionary they are only about negative things ("exposure to the chance of injury or loss; a hazard or dangerous chance"). That PMP speak doesn't term them "uncertainties" instead of "risks" is risible.