An [[ocean]] is an enormous, continuous body of salt water. The [[Earth]] contains five oceans, which cover approximately 70% of the surface. Oceans contain a large, diverse collection of the Earth's lifeforms.
+
An '''ocean''' is an enormous, continuous body of salt water. The [[Earth]] contains five oceans, which cover approximately 70% of the surface. Oceans contain a large, diverse collection of the Earth's lifeforms.