Oceania

Oceania is the name used to designate the region of the earth comprising most of the islands in the Pacific Ocean and consists mostly of island nations comprising thousands of coral atolls and volcanic islands, with small human populations. The subdivisions of Oceania are Melanesia, Micronesia, and Polynesia, which are grouped together in accordance with the physical and cultural characteristics of the inhabitants. As defined by the United Nations, Oceania also includes Australia and New Zealand.