Oceanic Crust
The supercontinent that existed 250 million years ago is called Pangaea, and the ocean that surrounded it is known as Panthalassa.
Australia
Water that rises and covers land is a flood.
The South Pole may be surrounded by the continent of Antarctica, which in turn is surrounded by the Southern Ocean, and the nearest drop of water in that ocean is at least 750 miles distant from the Pole.
Yes, Africa is a continent, normally referred to as "the African continent"
No they call the continent Oceania to include Australia, Fiji, New Zealand and other small islands that make up that continent. Calling the continent just Australia was leaving out many islands that are around there that weren't being included as "part" of the continent when people where looking at it though they actually are.
The edges of the continental plates under water are called the continental shelf.
The official name of the Antarctic Ocean is Southern Ocean.
No it is a country in the region of Oceania. Some people also call Oceania, Australia because it is the biggest country in it. Australia is the largest country in the continent of Australia (the continent Australia includes Australia and the islands around it). It is located in the Pacific Ocean.
Tea weed
Inactive volcanic peaks under ocean waves are called "seamounts." These submerged mountains are typically formed by volcanic activity and rise from the ocean floor but do not reach the surface. Seamounts can create unique ecosystems and are often hotspots for marine biodiversity.
Asia is the largest continent, located between Europe and Africa and the Pacific Ocean, just above Australia. It is generally between 5°N and 80°N and between 35°E and about 180°E . Asia is the largest continent in the world. Countries like Russia, China, and India inhabit this continent.