What is the length of Australian coastline?
Australia is separated from the Asian continent by the Arafura and Timor seas. Australia has a total of 34,218 kilometers of coastline (excluding all offshore islands). Bounded by the Indian, Pacific and Southern oceans on its western, eastern, and southern margins, and the Arafura and Timor seas on its northern margin, The Great Barrier Reef, the world's largest coral reef, lies on the north-east coast and extends over 2,000 kilometres. From above facts, the correct answer is 34,218 km. So correct option is B. Other options are not relevant.