body of water vs Earth's surface

body of water and Earth's surface both are nouns.

Word	Noun	Adjective	Verb	Adverb
body of water	Yes	No	No	No
Earth's surface	Yes	No	No	No

body of water (noun)	Earth's surface (noun)
the part of the earth's surface covered with water (such as a river or lake or ocean)	the outermost level of the land or sea