Moral questions are (or at a minimum involve subordinate questions which are) outside the scope of empirical science; in this way they are similar to many religious questions (and the categories overlap), but they are not the same as, or a subset of, religious questions.
Moral questions are not outside the scope of empirical science. Religious moral questions are outside the scope of any meaningful questions. (see the various god-related commandments in the 10 commandments, none of those make sense to non-believers)
> Moral questions are not outside the scope of empirical science.
Yes, they are. Science can answer is, it can't answer ought.
(It can help reach practical conclusions from moral axioms applied to concrete facts, but that's not really answering moral questions: the choice of axioms is the thing that answers the moral questions, and science can't help you there.)
Moral questions are (or at a minimum involve subordinate questions which are) outside the scope of empirical science; in this way they are similar to many religious questions (and the categories overlap), but they are not the same as, or a subset of, religious questions.