The type of seaweed used in sushi.
Sushi-nori ~ uses raw ingredients, where-as normal sushi does not ^^
Maki
Its impossible to know. Everyone would be floating in space since he threw us so far.
Nori usually comes in two colors. There is red, which sometimes looks more purplish and there is green. If you are lucky enough to find it, some fish markets might even have brown nori.