Not really. If an American doesn't know where Oceania is (and they likely don't), then they are left to assume that Australia is the continent, not an island.
Hence, I was providing a counter-example to your dubious claim that "Americans know of islands and continents". Come to think of it... what do you even mean by that? What does it mean to "know of islands and continents"?
Hence, I was providing a counter-example to your dubious claim that "Americans know of islands and continents". Come to think of it... what do you even mean by that? What does it mean to "know of islands and continents"?