The Ocean Biome
Oceans cover almost 3/4 of the Earth's surface and contain roughly 97% of the Earth's water supply. Life on earth originated in the salty seas, and contines to be home to an incredibly diverse web of life.The Earth's oceans are all connected to one another.
There are five oceans: the Pacific, Atlantic, Indian, Arctic, and Southern. There are also many seas (smaller branches of an ocean); seas are partly enclosed by land. The largest seas are the South China Sea, the Caribbean Sea, and the Mediterranean Sea.