natural covering vs covering

natural covering and covering both are nouns.

Word	Noun	Adjective	Verb	Adverb
natural covering	Yes	No	No	No
covering	Yes	No	No	No

As nouns, natural covering and covering are synonyms defined as:

Other synonyms of natural covering include cover.

natural covering (noun)	covering (noun)
a natural object that covers or envelops	the act of protecting something by covering it
	the work of applying something
	the act of concealing the existence of something by obstructing the view of it
	an artifact that covers something else (usually to protect or shelter or conceal it)
	a natural object that covers or envelops