Papua New Guinea
Mt. Puncak Jaya is the highest mountain in Oceania. It has an elevation of 5030m, and is in Indonesia. However - some sources say that Indonesia is not truly a part of Oceania, in which case, the highest mountain in Oceania would be Mount Wilhelm, in Papua New Guinea, which is 4509 metres high. Papua New Guinea is part of Oceania.
The highest mountain peak of Oceania is "Puncak Jaya".
The exact definition of Oceania varies, including whether or not it encompasses Australia. The most common definition of Oceania does include Australia, therefore the most populous city in Oceania is commonly believed to be Sydney, followed by Melbourne and Brisbane.
Australia's highest mountain is Mt Kosciuszko, in New South Wales. It has an elevation of 2228m.
Mount Kosciuszko is on the continent of Australia.At 2228m high, it is Australia's highest mainland mountain, though not the highest mountain in Australian territory.
'mountain in australia?' The highest IN Australia is Mount Kosciusko. I think that's what you mean anyway.
Mount Kosciuszko is Australia's highest mountain. Like many of Australia's highest peaks, Mount Kosciuszko is not particularly difficult to climb.
Australia
Yes, Australia is located in Oceania.
Australia never changed its name to Oceania. Oceania refers to Australia, New Zealand and surroundings.
Yes, Puncak Jaya is a mountain located in Indonesia. It is not a volcano but is the highest peak in Oceania.