Составить вопросы 1) why are there a)50 stars on the americanflag? 2) why is b)they use euros in northern ireland? 3)why does c)ireland green? 4)why dont d) the american president live in washington dc

1) why are there a) 50 stars on the American flag?
2) why is c) Ireland green?
3) why does d) the American President live in washington DC?
4) why don't b)they use euros in northern ireland?