If they are Canadian and a sports team - they can be any sport they want.
yes.
Yes.
Any team that is playing against the team you root for.
Mississippi has the lowest income of any state.
Mississippi joined the Union on December 10, 1817 - as the 20th State
There is no single team that represents the British Isles in any sport.
Thera are many sports teams in Poland, can you be more specific?
yes
yes delaware has a baseball team
Ajax is probably the most famous sports team in Netherlands.
I think Mississippi State is the only one. It's...not terribly well respected.