Continent with other islands in the Pacific into one continent called Oceania. This divides the entire land surface of Earth into continents or quasi-continents. The ideal criterion that each continent is a discrete landmass is commonly relaxed due to historical conventions. Of the seven most globally recognized continents, only Antarctica and Australia are completely separated from other continents by the ocean. Several continents are defined not as absolutely distinct bodies but as ""more or less" discrete masses of land". Asia and Africa are joined by the Isthmus of Suez, and North and South America by the Isthmus of Panama. In both
Karain semi-continent semi-continent has four distinct watersheds, the largest of which makes up the entire core of the semi-continent itself. The center of the semi-continent is a massive valley running roughly south to north, and bordered on three sides by mountain chains. Runoff from the mountains flows downhill until it meets Lake M-pulo. To the south, the Karain watershed is bordered by the alpine Islandia Mountains, and meltwater from these provides most of the water to the valley. In the west, the Ono and Matclorn Rivers flow south and east out of the mountains over the Sobo steppes, which eventually merge into