Oceania is the name given to a group of Islands spread over in the Pacific Ocean. The majority lies in the Southern Hemisphere. These islands rang in equal size to that of Australia. On cultural grounds the islands are divided into four groups. The first Micronesia lies east of the Philippines and includes the Federated States of Micronesia. Palau, the Marshall Islands Nauru and the. USA dependencies of Guam and the North Mariana Islands .These group of islands have indigenous populations but the majority of the population are people migrated from European countries many centuries ago. Physiographically the islands of Oceania can be classified into four categories. First there are plateaus formed by vast sedimentary basins. In the second category are the islands lying along the collision boundaries between crustal plates in the South Pacific. The third part includes volcanic islands such as Fiji made up high mountains with some low lying fringes along with the coral reefs. Finally last but not the least comes the coral islands and atolls. Atolls are formed around volcanoes conical ones.
There are two types of climates tropical and temperate zones. Rain forests both tropical and temperate occur in all the humid regions. Isolation has been a major factor in the development of unique species of animals. Agriculture in Oceania. Can be divided in to three kinds. Labour intensive subsistence agriculture. it occurs mostly in the tropical islands of the pacific .plantation crops are cultivated in the medium sized tropical islands and capital intensive agriculture is found in New Zealand and Australia. Fishing is important for the majority of pacific islands as their economic zones extend to two hundred mile limit. A. Large as compared to many islands. A language spoken is English and French hundreds of languages are spoken in these islands. Industrialization. Australia and New Zealand have modern diversified economies with well established infrastructures. Manufacturing including food processing makes an important. Contribution to the pacific nations. Tourism has become an important. Source does revenues for much of Oceania. Beautiful sceneries of tropical pacific islands provide enchantment to the view of tourists and travel lovers.