What's the profession of Mario in the classic Nintendo games?

Plumber

Which invertebrate animal's sting carries potent venom, causing severe pain to humans in Australian waters? In Hawaii, how would you say "Merry Christmas"? Which beverage, produced by fermenting apples, is a common alcoholic drink in the UK and Ireland? What naturally occurring geologic formation ejects heated water and steam periodically? Who painted the mural series 'The Epic of American Civilization'?