What is an ocean?
An ocean is a continuous body of saltwater. Any environment of water with 3.5% or more salinity can be considered a salt water or ocean habitat. All the Earth’s oceans are linked and cover about 71% of the Earth’s surface and 97%t of the earth's water area.
What are the Earth’s oceans?
Our one ocean is divided into the Pacific, Atlantic, Indian, Arctic and Southern oceans. The Pacific Ocean contains about half of the total ocean area and is larger in area than the entire world's land combined.